-
question_answer1)
The least common multiple of 9, 18 and 36 is 'm'. Identify the value of m.
A)
36 done
clear
B)
18 done
clear
C)
27 done
clear
D)
72 done
clear
View Solution play_arrow
-
question_answer2)
Identify the common multiples of 6 and 18.
A)
84 and 96 done
clear
B)
90 and 120 done
clear
C)
162 and 180 done
clear
D)
156 and 218 done
clear
View Solution play_arrow
-
question_answer3)
The H.C.F. of 72 and 96 is 'p'. What is the value of 'p'?
A)
16 done
clear
B)
24 done
clear
C)
18 done
clear
D)
12 done
clear
View Solution play_arrow
-
question_answer4)
Identify the sum of the first 4 multiples of 9.
A)
36 done
clear
B)
27 done
clear
C)
54 done
clear
D)
90 done
clear
View Solution play_arrow
-
question_answer5)
Observe the following. \[m=3\times 2\times {{5}^{2}}\] \[n={{3}^{2}}\times {{2}^{2}}\times 5\] \[p={{3}^{2}}\times {{2}^{2}}\times {{5}^{2}}\] What is the G.C.D of m, n and p?
A)
30 done
clear
B)
150 done
clear
C)
45 done
clear
D)
50 done
clear
View Solution play_arrow
-
question_answer6)
Which of the following is the H.C.F. of 11 and 15?
A)
165 done
clear
B)
11 done
clear
C)
15 done
clear
D)
1 done
clear
View Solution play_arrow
-
question_answer7)
Find the H.C.F. of \[4\times 27\times 3125,\] \[8\times 9\times 25\times 7\]and \[16\times 81\times 5\times 11\times 49\].
A)
180 done
clear
B)
360 done
clear
C)
540 done
clear
D)
1260 done
clear
View Solution play_arrow
-
question_answer8)
Find the greatest number that divides 43, 91 and 183 so as to leave the same remainder in each case.
A)
4 done
clear
B)
7 done
clear
C)
9 done
clear
D)
13 done
clear
View Solution play_arrow
-
question_answer9)
Which of these prime factorizations is correct?
A)
\[96=2\times 2\times 2\times 2\times 2\times 2\times 3\] done
clear
B)
\[91=7\times 13\] done
clear
C)
\[192=2\times 2\times 2\times 2\times 2\times 3\times 5\] done
clear
D)
\[324=2\times 2\times 2\times 2\times 2\times 2\times 2\times 2\] done
clear
View Solution play_arrow
-
question_answer10)
Three numbers are in the ratio \[1:2:3\]and their H.C.F. is 12. Find the numbers.
A)
\[4,\text{ }8,\text{ }12\] done
clear
B)
\[5,\text{ }10,\text{ }15\] done
clear
C)
\[10,\text{ }20,\text{ }30\] done
clear
D)
\[12,\text{ }24,\text{ }36\] done
clear
View Solution play_arrow
-
question_answer11)
What is the G.C.D of two consecutive odd numbers?
A)
3 done
clear
B)
5 done
clear
C)
1 done
clear
D)
15 done
clear
View Solution play_arrow
-
question_answer12)
What is the greatest mass that can be taken in an exact number of times from \[144\text{ }g,\text{ }216\text{ }g\] and\[126\text{ }g\]?
A)
16 done
clear
B)
18 done
clear
C)
20 done
clear
D)
24 done
clear
View Solution play_arrow
-
question_answer13)
Three similar steel bars of lengths 200 cm, 300 cm and 360 cm are cut into equal pieces. Find the largest possible area of a square which can be made from any of the three pieces.
A)
\[400\text{ }c{{m}^{2}}\] done
clear
B)
\[625\text{ }c{{m}^{2}}\] done
clear
C)
\[225\text{ }c{{m}^{2}}\] done
clear
D)
\[169\text{ }c{{m}^{2}}\] done
clear
View Solution play_arrow
-
question_answer14)
Three packets of sugar have masses 360 g, 504 g and 672 g. Find the greatest mass of sugar that can be taken an exact number of times from the three packets.
A)
\[0.10\text{ }kg\] done
clear
B)
\[0.11\text{ }kg\] done
clear
C)
\[0.024\text{ }kg\] done
clear
D)
\[0.24\text{ }kg\] done
clear
View Solution play_arrow
-
question_answer15)
Find the H.C.F. and L.C.M. of \[\frac{2}{3},\frac{8}{9},\frac{16}{81}\] and \[\frac{10}{27}\]
A)
\[\frac{1}{27}\] done
clear
B)
\[\frac{1}{9}\] done
clear
C)
\[\frac{2}{81}\] done
clear
D)
\[\frac{1}{3}\] done
clear
View Solution play_arrow
-
question_answer16)
The L.C.M. of 8, 12, 18 and 20 is 10p. What is the value of 'p?
A)
32 done
clear
B)
36 done
clear
C)
24 done
clear
D)
27 done
clear
View Solution play_arrow
-
question_answer17)
Identify the L.C.M. of 21, 28, 36 and 45 from the following.
A)
\[12\times 90\] done
clear
B)
\[14\times 90\] done
clear
C)
\[11\times 120\] done
clear
D)
\[12\times 120\] done
clear
View Solution play_arrow
-
question_answer18)
The L.C.M. of 22, 54, 108, 135 and 198 is a four digit number whose hundred's digit is the sum of the digits in the other three places. Identify the L.C.M.
A)
1980 done
clear
B)
3924 done
clear
C)
5940 done
clear
D)
2530 done
clear
View Solution play_arrow
-
question_answer19)
The smallest fraction, which divides each of\[\frac{6}{7},\frac{5}{14}\] and \[\frac{10}{21}\] exactly.
A)
\[4\frac{2}{7}\] done
clear
B)
\[\frac{3}{14}\] done
clear
C)
\[\frac{2}{21}\] done
clear
D)
\[\frac{5}{28}\] done
clear
View Solution play_arrow
-
question_answer20)
Three boys step off from the same place. If each of their steps measures 36 cm, 48 cm and 54 cm respectively, at what distance from the starting point will they step together again?
A)
\[268\text{ }cm\] done
clear
B)
\[432\text{ }cm\] done
clear
C)
\[144\text{ }cm\] done
clear
D)
\[324\text{ }cm\] done
clear
View Solution play_arrow
-
question_answer21)
Four bells begin to toll together at intervals of 5, 6, 8 and 12 seconds respectively. How many times will they toll together in an hour excluding the one at the start?
A)
30 done
clear
B)
20 done
clear
C)
10 done
clear
D)
16 done
clear
View Solution play_arrow
-
question_answer22)
A heap is to be formed with lots of 8, 10 and 15 pebbles of different colours. Find the smallest number of pebbles in the heap.
A)
121 done
clear
B)
120 done
clear
C)
110 done
clear
D)
8 done
clear
View Solution play_arrow
-
question_answer23)
Find the greatest number of four digits which is divisible by each of the numbers 12, 18, 21 and 28.
A)
9718 done
clear
B)
9648 done
clear
C)
9828 done
clear
D)
9542 done
clear
View Solution play_arrow
-
question_answer24)
If \[\frac{4}{5}\] of an estate is worth \[Rs.16800,\]find the value of \[\frac{3}{7}\] of the estate.
A)
\[Rs.9000\] done
clear
B)
\[Rs.21000\] done
clear
C)
\[Rs.72000\] done
clear
D)
\[Rs.90000\] done
clear
View Solution play_arrow
-
question_answer25)
The ratio of two numbers is \[3:4\]and their H.C.F. is 4. Find their L.C.M.
A)
12 done
clear
B)
16 done
clear
C)
24 done
clear
D)
48 done
clear
View Solution play_arrow
-
question_answer26)
The product of two numbers is 15552 and their H.C.F. is 36. Find their L.C.M.
A)
240 done
clear
B)
432 done
clear
C)
568 done
clear
D)
172 done
clear
View Solution play_arrow
-
question_answer27)
The G.C.D. of two numbers is 12 and their L.C.M. is 240. If one of the numbers is 60, find the other number.
A)
36 done
clear
B)
48 done
clear
C)
72 done
clear
D)
24 done
clear
View Solution play_arrow
-
question_answer28)
Six bells commence tolling together at intervals of 2, 4, 6, 8, 10 and 12 minutes respectively. After how many minutes will they toll together again?
A)
140 done
clear
B)
230 done
clear
C)
180 done
clear
D)
120 done
clear
View Solution play_arrow
-
question_answer29)
What is the least length of a school working day in hours if it can be split into exact periods of 30 minutes, 40 minutes or 45 minutes?
A)
4 hours done
clear
B)
5 hours done
clear
C)
6 hours done
clear
D)
7 hours done
clear
View Solution play_arrow
-
question_answer30)
How many pairs of numbers are there whose sum is 528 and H.C.F. is 33?
A)
4 done
clear
B)
3 done
clear
C)
5 done
clear
D)
7 done
clear
View Solution play_arrow
-
question_answer31)
The product of two numbers is 675 and their L.C.M. is 75. Find their G.C.D.
A)
3 done
clear
B)
5 done
clear
C)
6 done
clear
D)
9 done
clear
View Solution play_arrow
-
question_answer32)
Find the greatest number that divides 137,182 and 422 leaving a remainder of 2 in each case.
A)
15 done
clear
B)
12 done
clear
C)
21 done
clear
D)
24 done
clear
View Solution play_arrow
-
question_answer33)
If \[(k-8)\] is the H.C.F. of 56 and 77, find the value of 'k'.
A)
7 done
clear
B)
11 done
clear
C)
15 done
clear
D)
16 done
clear
View Solution play_arrow
-
question_answer34)
The H.C.F. of two numbers is 11 and their L.C.M. is 7700. If one of the numbers is 275, find the other number
A)
279 done
clear
B)
283 done
clear
C)
308 done
clear
D)
318 done
clear
View Solution play_arrow
-
question_answer35)
If \[a-12=28\]and \[b+13=93,\]find the product \[a\times b\].
A)
\[H.C.F.+L.C.M.\]of a and b done
clear
B)
\[H.C.F.\times L.C.M.\]of a and b done
clear
C)
\[L.C.M.-H.C.F.\]of a and b done
clear
D)
\[H.C.F.-LCM\] of \[a-b\] done
clear
View Solution play_arrow
-
question_answer36)
108 pencils and 180 erasers were divided equally among some boys, such that the number of boys is the largest. Identify the number of pencils and erasers distributed to each boy.
A)
5 pencils, 3 erasers done
clear
B)
3 pencils, 5 erasers done
clear
C)
3 pencils, 10 erasers done
clear
D)
3 pencils, 15 erasers done
clear
View Solution play_arrow
-
question_answer37)
The LC.M. of two numbers x and y such that \[x>y\] is 161. Find the value of\[3y-x\].
A)
\[-2\] done
clear
B)
\[-1\] done
clear
C)
\[1\] done
clear
D)
\[2\] done
clear
View Solution play_arrow
-
question_answer38)
The greatest possible length which can be used to measure find the lengths \[7\text{ }m,\text{ }3\text{ }m\text{ }85\text{ }cm,\]\[12\text{ }m\text{ }95\text{ }cm\] exactly.
A)
\[15\text{ }cm\] done
clear
B)
\[25\text{ }cm\] done
clear
C)
\[35\text{ }cm\] done
clear
D)
\[\text{42 }cm\] done
clear
View Solution play_arrow
-
question_answer39)
The L.C.M. of 350 and 750 is\[50\times m\]. Find the value of 'm'.
A)
105 done
clear
B)
25 done
clear
C)
15 done
clear
D)
205 done
clear
View Solution play_arrow
-
question_answer40)
Find the largest 3-digit number divisible by 19.
A)
988 done
clear
B)
998 done
clear
C)
999 done
clear
D)
969 done
clear
View Solution play_arrow