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question_answer1)
A number X is exactly divisible by 6. What is the remainder when the same number is divided by 12?
A)
0 done
clear
B)
6 done
clear
C)
Either (a) or (b) done
clear
D)
Neither (a) nor (b) done
clear
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question_answer2)
Find the sum of all the factors of 24.
A)
48 done
clear
B)
24 done
clear
C)
60 done
clear
D)
54 done
clear
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question_answer3)
Study the numbers given in the box.
Identify the number that is not a divisor of the given numbers.
A)
23 done
clear
B)
24 done
clear
C)
36 done
clear
D)
12 done
clear
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question_answer4)
Find the L.C.M. of 12, 24 and 36.
A)
36 done
clear
B)
24 done
clear
C)
72 done
clear
D)
108 done
clear
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question_answer5)
What is the H.C.F. of two co-prime numbers?
A)
1 done
clear
B)
0 done
clear
C)
2 done
clear
D)
Their product done
clear
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question_answer6)
What is the H.C.F. of 120, 144 and 216?
A)
38 done
clear
B)
24 done
clear
C)
120 done
clear
D)
144 done
clear
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question_answer7)
When a number is increased by 8, it is divisible by 35. What is the remainder when the same number is divided by 5?
A)
2 done
clear
B)
4 done
clear
C)
3 done
clear
D)
0 done
clear
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question_answer8)
The largest number less than 100 divisible by 15 is decreased by 5. Which of these is a factor of the resultant number?
A)
23 done
clear
B)
17 done
clear
C)
25 done
clear
D)
19 done
clear
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question_answer9)
P is the largest factor of 48 and Q is its smallest multiple. Find the value of \[\text{2P + 3Q}\].
A)
240 done
clear
B)
360 done
clear
C)
120 done
clear
D)
480 done
clear
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question_answer10)
Which of the following sets of numbers have the same H.C.F?
60 650 250 | 230 450 | 120 180 240 | 135 315 495 |
P | Q | R | S |
A)
Q and R done
clear
B)
P and R done
clear
C)
R and S done
clear
D)
P and Q done
clear
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question_answer11)
How many times the H.C.F. of 11, 33 and 88 is their L.C.M.?
A)
11 done
clear
B)
24 done
clear
C)
22 done
clear
D)
3629 done
clear
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question_answer12)
How many hundreds are there in the sum of the factors of 140?
A)
300 done
clear
B)
30 done
clear
C)
336 done
clear
D)
3 done
clear
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question_answer13)
Observe the twin primes in the table.
(3, 5) | (5, 7) | (11, 13) | (17, 19) |
P | Q | R | S |
Which of the given twin primes are present in the prime factorisation of 2145?
A)
Q and R done
clear
B)
P and S done
clear
C)
P and Q done
clear
D)
P and R done
clear
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question_answer14)
Study the prime factorisation of X and Y given.
\[\text{X = 2 }\!\!\times\!\!\text{ 3 }\!\!\times\!\!\text{ 3 }\!\!\times\!\!\text{ 3 }\!\!\times\!\!\text{ 3 }\!\!\times\!\!\text{ 3 }\!\!\times\!\!\text{ 5}\] |
\[\text{Y = 2 }\!\!\times\!\!\text{ 2 }\!\!\times\!\!\text{ 3 }\!\!\times\!\!\text{ 3 }\!\!\times\!\!\text{ 5 }\!\!\times\!\!\text{ 19}\] |
What is the place value of 8 in the sum of the numbers X and Y?
A)
\[\text{8 }\times \text{ 1000}\] done
clear
B)
\[\text{8 }\times \text{ 100}\] done
clear
C)
\[\text{8 }\times \text{ 10}\] done
clear
D)
\[\text{8 }\times \text{ 1}\] done
clear
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question_answer15)
Aakash's age is a factor of 14. Next year his age will be a multiple of 5. How old will he be in 6 years' time?
A)
15 years done
clear
B)
21 years done
clear
C)
14 years done
clear
D)
20 years done
clear
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question_answer16)
Study the following.
M is the least common multiple of 18, 24 and 40 |
N is the highest common factor of 60, 189 and 360 |
Which digit in the number \[\text{2M+15N}\] is in the thousands place?
A)
0 done
clear
B)
1 done
clear
C)
2 done
clear
D)
6 done
clear
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question_answer17)
Study the following.
The number is between 10 and 50 |
It is a multiple of 6 |
It is a factor of 96 |
Which of the following is NOT a possible value of the number?
A)
12 done
clear
B)
24 done
clear
C)
30 done
clear
D)
48 done
clear
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question_answer18)
What is the number which is a multiple of both '3' and '6' but not 9?
A)
72 done
clear
B)
63 done
clear
C)
45 done
clear
D)
48 done
clear
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question_answer19)
Observe the figure given.
Identify the missing numbers X and Y.
A)
\[\begin{align} & \text{X = 24} \\ & \text{Y = 26} \\ \end{align}\] done
clear
B)
\[\begin{align} & \text{X = 22} \\ & \text{Y = 24} \\ \end{align}\] done
clear
C)
\[\begin{align} & \text{X = 19} \\ & \text{Y = 20} \\ \end{align}\] done
clear
D)
\[\begin{align} & \text{X = 23} \\ & \text{Y = 25} \\ \end{align}\] done
clear
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question_answer20)
What is the value of X if it is the H.C.F of 240 and 288?
A)
48 done
clear
B)
16 done
clear
C)
30 done
clear
D)
32 done
clear
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question_answer21)
If 'a' and 'b' are two different numbers such that their product is 15, what is the product of their L.C.M. and H.C.F.?
A)
10 done
clear
B)
15 done
clear
C)
27 done
clear
D)
53 done
clear
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question_answer22)
Which number can be divided into two equal groups with no remainder?
A)
850 done
clear
B)
493 done
clear
C)
223 done
clear
D)
395 done
clear
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question_answer23)
15 and 30 are common multiples of 5 and X. X is a one-digit number other than 1. What is X?
A)
3 done
clear
B)
6 done
clear
C)
4 done
clear
D)
8 done
clear
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question_answer24)
How many numbers between 6 and 40 can be divided by 3?
A)
12 done
clear
B)
14 done
clear
C)
11 done
clear
D)
15 done
clear
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question_answer25)
Find the number of zeroes from 10 to 110.
A)
12 done
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B)
11 done
clear
C)
13 done
clear
D)
10 done
clear
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question_answer26)
How many of the digit 8 are there altogether in numbers from 8 to 88?
A)
18 done
clear
B)
16 done
clear
C)
17 done
clear
D)
19 done
clear
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question_answer27)
Find the division with the greatest remainder.
A)
\[15\div 3\] done
clear
B)
\[\text{23}\div \text{4}\] done
clear
C)
\[\text{37}\div \text{5}\] done
clear
D)
\[\text{32}\div \text{6}\] done
clear
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question_answer28)
What is the sum of the first three common multiples of 6 and 9?
A)
54 done
clear
B)
108 done
clear
C)
162 done
clear
D)
216 done
clear
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question_answer29)
What are the common factors of 18, 36 and 48?
A)
6 done
clear
B)
3 done
clear
C)
2 done
clear
D)
All the above done
clear
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question_answer30)
The Fish Bowl store had a sale. During the sale, the store gave away two kinds of fish, i.e., gold fish and cat fish.
* Every 5th customer received a free gold fish. |
* Every 12th customer received a free cat fish. |
There were 134 customers on the day of the sale. Estimate the number of customers who received both a free gold fish and a free cat fish?
A)
2 done
clear
B)
11 done
clear
C)
26 done
clear
D)
37 done
clear
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question_answer31)
Which of the following is correct?
A)
\[\begin{align} & 72\div 8>6 \\ & 18-9>3 \\ \end{align}\] done
clear
B)
\[\begin{align} & 72\div 8<6 \\ & 18-9<3 \\ \end{align}\] done
clear
C)
\[\begin{align} & 72\div 8=6 \\ & 18-9=3 \\ \end{align}\] done
clear
D)
\[\begin{align} & 6\times 3>20 \\ & 19\times 2<35 \\ \end{align}\] done
clear
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question_answer32)
There are 9 rows of seats in a theater. Each row has the same number of seats. If there is a total of 162 seats, how many seats are there in each row?
A)
17 done
clear
B)
18 done
clear
C)
19 done
clear
D)
20 done
clear
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question_answer33)
Aarti bought 3 bags of red balls and 5 bags of white balls. Each bag has 7 balls in it. Which expression could Aarti use to find the total number of balls she bought?
A)
\[(7\times 3)+5\] done
clear
B)
\[\text{(7 }\times \text{ 5) + 3}\] done
clear
C)
\[\text{7 }\times \text{ (3 + 5)}\] done
clear
D)
\[\text{7 + (5 }\times \text{ 3)}\] done
clear
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question_answer34)
Which of the following is true?
A)
\[\text{6}\times \text{3 = 4}\times \text{4}\] done
clear
B)
\[\text{20 - 5 = 19 - 3}\] done
clear
C)
\[\text{9 + 8 = 10 + 7}\] done
clear
D)
\[\text{2 }\!\!\times\!\!\text{ 3 = 2 + 3}\] done
clear
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question_answer35)
Which of the following are numbers whose H.C.F. is 1?
A)
Prime numbers done
clear
B)
Composite numbers done
clear
C)
Co-prime numbers done
clear
D)
Twin prime numbers done
clear
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question_answer36)
What is the smallest number which is exactly divisible by 12, 16 and 20?
A)
12 done
clear
B)
20 done
clear
C)
200 done
clear
D)
240 done
clear
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question_answer37)
Hari has 6 biscuits and Renu has 10 biscuits. Which of the following actions would result in Hari and Renu having the same number of biscuits?
A)
Hari gives 2 of his biscuits to Renu done
clear
B)
Hari gives 4 of his biscuits to Renu done
clear
C)
Renu gives 2 of her biscuits to Hari done
clear
D)
Renu gives 4 of her biscuits to Hari done
clear
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question_answer38)
Given that (p + 3) is the highest common factor of 81 and 108, find the value of p.
A)
6 done
clear
B)
9 done
clear
C)
12 done
clear
D)
24 done
clear
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question_answer39)
If 84 is a common multiple of 4 and n, which of the following is not a value of n?
A)
6 done
clear
B)
7 done
clear
C)
21 done
clear
D)
24 done
clear
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question_answer40)
The figure shows some of the factors of 60.
What are the possible values of a and b?
A)
a = 2, b = 16 done
clear
B)
a = 4, b = 20 done
clear
C)
a = 6, b = 25 done
clear
D)
a = 8, b = 30 done
clear
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question_answer41)
A set of warning lights flashes every 3 seconds, another set flashes every 5 seconds and third set flashes every 8 seconds. If they all flash together at 12: 00 noon, at what time will they flash together again?
A)
12: 01 p.m. done
clear
B)
12: 02 p.m. done
clear
C)
12: 06 p.m. done
clear
D)
12: 15 p.m. done
clear
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