question_answer1) Which of the following are two consecutive prime numbers that differ by 2?
A) Co-primes done clear
B) Twin primes done clear
C) Composite numbers done clear
D) Both (a) and (b) done clear
View Solution play_arrowquestion_answer2) Identify the numbers with only 1 as their common factor.
A) Co-prime numbers done clear
B) Twin prime numbers done clear
C) Composite numbers done clear
D) Prime numbers done clear
View Solution play_arrowquestion_answer3) Find the smallest whole number that is divisible by \[10\] and\[12\].
A) \[40\] done clear
B) \[30\] done clear
C) \[72\] done clear
D) \[60\] done clear
View Solution play_arrowquestion_answer4) Which of the following are not multiples of\[2\]?
A) Even numbers done clear
B) Odd numbers done clear
C) Prime numbers done clear
D) Composite numbers done clear
View Solution play_arrowquestion_answer5) Which type of numbers have more than two factors?
A) Even numbers done clear
B) Prime numbers done clear
C) Composite numbers done clear
D) Odd numbers done clear
View Solution play_arrowA) \[468\] done clear
B) \[540\] done clear
C) \[504\] done clear
D) \[432\] done clear
View Solution play_arrowquestion_answer7) What is the \[L.C.M.\] of two co-prime numbers?
A) Their sum done clear
B) Their difference done clear
C) Their product done clear
D) Their quotient done clear
View Solution play_arrowA) \[23\] done clear
B) \[24\] done clear
C) \[36\] done clear
D) \[12\] done clear
View Solution play_arrowquestion_answer9) A 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
View Solution play_arrowquestion_answer10) Identify an example for twin primes.
A) \[5,\,\,11\] done clear
B) \[3,\,\,5\] done clear
C) \[11,\,\,17\] done clear
D) \[3,\,\,7\] done clear
View Solution play_arrowquestion_answer11) What is the \[H.C.F.\] of \[36\] and\[144\]?
A) \[36\] done clear
B) \[144\] done clear
C) \[4\] done clear
D) \[2\] done clear
View Solution play_arrowquestion_answer12) 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
View Solution play_arrowA) \[4500\] done clear
B) \[4600\] done clear
C) \[4400\] done clear
D) \[1000\] done clear
View Solution play_arrowquestion_answer14) What are the common factors of\[9\]and\[36\]?
A) \[1,\,\,3,\,\,9\] done clear
B) \[1,\,\,4,\,\,3,\,\,5,\,\,9\] done clear
C) \[1,\,\,4,\,\,5\] done clear
D) \[1,\,\,3,\,\,4,\,\,9\] done clear
View Solution play_arrowquestion_answer15) Find three common multiples of\[18\]and\[6\].
A) \[18,\,\,6,\,\,9\] done clear
B) \[18,\,\,36,\,\,6\] done clear
C) \[36,\,\,54,\,\,72\] done clear
D) \[1,\,\,6,\,\,18\] done clear
View Solution play_arrowA) \[2\] done clear
B) \[4\] done clear
C) \[3\] done clear
D) \[0\] done clear
View Solution play_arrowA) \[23\] done clear
B) \[17\] done clear
C) \[25\] done clear
D) \[19\] done clear
View Solution play_arrowquestion_answer18) How many prime numbers are there from \[50\] to\[100\]?
A) \[18\] done clear
B) \[12\] done clear
C) \[10\] done clear
D) \[20\] done clear
View Solution play_arrowquestion_answer19) How is \[20\] written as the product of primes?
A) \[2\times 5\] done clear
B) \[2\times 2\times 3\times 5\] done clear
C) \[2\times 2\times 5\] done clear
D) \[2\times 2\times 3\] done clear
View Solution play_arrowquestion_answer20) Identify the correct statement.
A) The L.C.M. of two co-primes is their product. done clear
B) The H.C.F. of twin primes is their product. done clear
C) The largest factor of a number is 1. done clear
D) The smallest factor of a number is the number itself. done clear
View Solution play_arrowquestion_answer21) Which of the following sets of numbers have the same H.C.F.?
60 | 120 | 135 | |
650 | 230 | 180 | 315 |
250 | 450 | 240 | 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
View Solution play_arrowquestion_answer22) 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
View Solution play_arrowquestion_answer23) Identify an example for co-prime numbers.
A) \[25,\,\,14\] done clear
B) \[18,\,\,16\] done clear
C) \[9,\,\,18\] done clear
D) \[11,\,\,77\] done clear
View Solution play_arrowquestion_answer24) The L.C.M. of two numbers is \[10\] times their H.C.F. Find the numbers.
A) \[24,\,\,96\] done clear
B) \[16,\,\,15\] done clear
C) \[24,\,\,480\] done clear
D) \[24,\,\,240\] done clear
View Solution play_arrowquestion_answer25) What is the sum of the first five multiples of\[8\]?
A) \[90\] done clear
B) \[60\] done clear
C) \[30\] done clear
D) \[120\] done clear
View Solution play_arrowquestion_answer26) Find the least \[4-\]digit number that is divisible by\[8\].
A) \[1000\] done clear
B) \[1008\] done clear
C) \[4000\] done clear
D) \[1016\] done clear
View Solution play_arrowquestion_answer27) Find the product of all the factors of\[40\].
A) \[265\times 100\] done clear
B) \[256\times 10000\] done clear
C) \[256\times 1000\] done clear
D) \[265\times 1000\] done clear
View Solution play_arrowquestion_answer28) How many factors does \[256\] have?
A) \[9\] done clear
B) \[8\] done clear
C) \[10\] done clear
D) \[12\] done clear
View Solution play_arrowquestion_answer29) 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
View Solution play_arrowA) The digits in hundreds and tens places of the sum are the same. done clear
B) The digit in ones place is the same as the digit in tens place. done clear
C) The digit in hundreds place is the same as the digit in ones place. done clear
D) The digit in ones place is the least. done clear
View Solution play_arrowA) \[5,\,\,9\] done clear
B) \[5,\,\,3\] done clear
C) \[9,\,\,4\] done clear
D) \[2,\,\,5\] done clear
View Solution play_arrowquestion_answer32) Observe the twin primes in the table.
(3, 5) | (5, 7) | (11, 13) | (17, 19) |
P | Q | R | S |
A) \[Q\]and\[R\] done clear
B) \[P\]and\[S\] done clear
C) \[P\]and\[Q\] done clear
D) \[P\]and\[R\] done clear
View Solution play_arrowA) \[3240\] done clear
B) \[2430\] done clear
C) \[3420\] done clear
D) \[2304\] done clear
View Solution play_arrowA) \[70\] done clear
B) \[76\] done clear
C) \[90\] done clear
D) \[85\] done clear
View Solution play_arrowA) \[15\,\,years\] done clear
B) \[21\,\,years\] done clear
C) \[14\,\,years\] done clear
D) \[20\,\,years\] done clear
View Solution play_arrowA) \[84\] done clear
B) \[42\] done clear
C) \[14\] done clear
D) \[7\] done clear
View Solution play_arrowquestion_answer37) Study the information given in the box. What is the value of\[X\]?
A) \[42\] done clear
B) \[28\] done clear
C) \[21\] done clear
D) \[12\] done clear
View Solution play_arrowA) \[24\] done clear
B) \[28\] done clear
C) \[12\] done clear
D) \[40\] done clear
View Solution play_arrowA) \[48\] done clear
B) \[58\] done clear
C) \[78\] done clear
D) \[68\] done clear
View Solution play_arrowA) \[1\] done clear
B) \[100\] done clear
C) \[10\] done clear
D) \[1000\] done clear
View Solution play_arrowquestion_answer41) How many twin primes are there between \[1\] and\[100\]?
A) \[6\] done clear
B) \[10\] done clear
C) \[7\] done clear
D) \[8\] done clear
View Solution play_arrowquestion_answer42) Which of these numbers has \[2,\,\,3,\,\,4\] and \[10\] as factors?
A) \[20709\] done clear
B) \[108240\] done clear
C) \[18045\] done clear
D) \[20801\] done clear
View Solution play_arrowA) \[0\] done clear
B) \[1\] done clear
C) \[2\] done clear
D) \[6\] done clear
View Solution play_arrowA) \[4\] done clear
B) \[2\] done clear
C) \[3\] done clear
D) \[5\] done clear
View Solution play_arrowA) \[60\] done clear
B) \[37\] done clear
C) \[23\] done clear
D) \[140\] done clear
View Solution play_arrowquestion_answer46) Which of the following numbers has \[8\] as factor?
A) \[136\] done clear
B) \[228\] done clear
C) \[842\] done clear
D) \[748\] done clear
View Solution play_arrowquestion_answer47) The L.C.M. of \[3,\,\,6\] and \[x\] is\[18\]. What is the possible value of\[x\]?
A) \[36\] done clear
B) \[6\] done clear
C) \[18\] done clear
D) \[3\] done clear
View Solution play_arrowA) \[6\] done clear
B) \[12\] done clear
C) \[9\] done clear
D) \[14\] done clear
View Solution play_arrowA) \[4\] done clear
B) \[32\] done clear
C) \[16\] done clear
D) \[40\] done clear
View Solution play_arrowA) \[a=2,\,\,b=16\] done clear
B) \[a=4,\,\,b=20\] done clear
C) \[a=6,\,\,b=25\] done clear
D) \[a=8,\,\,b=30\] done clear
View Solution play_arrowquestion_answer51) From the given diagram, what is the value of\[p+q+r\]?
A) \[7\] done clear
B) \[8\] done clear
C) \[9\] done clear
D) \[14\] done clear
View Solution play_arrowquestion_answer52) The given figure shows some of the factors of\[156\]. What is the value of\[x\]?
A) \[16\] done clear
B) \[8\] done clear
C) \[15\] done clear
D) \[39\] done clear
View Solution play_arrowA) \[2\]and\[3\] done clear
B) \[10\]and\[13\] done clear
C) \[2\]and\[13\] done clear
D) \[3\]and\[10\] done clear
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