Selected MCQ

Current Question
Sum of two numbers is 528, and HCF is 33. Number of pairs is ____.
  • A. 4
  • B. 6
  • C. 8
  • D. 12
Correct Answer: A
Explanation:
Count co-prime factor paiRs.
Related Question 1
The product of two numbers is 2028, and their HCF is 13. How many such pairs exist?
  • A. 1
  • B. 2
  • C. 3
  • D. 4
Correct Answer: B
Explanation:
Factorization yields two valid coprime pairs.
Related Question 2
Three numbers are co-prime. The product of the first two is 551. Find the third.
  • A. 75
  • B. 81
  • C. 85
  • D. 89
Correct Answer: C
Explanation:
Factorization approach.
Related Question 3
Three consecutive odd integers have a sum such that the last two exceed the first by 13. Find numbeRs.
  • A. 9,11,13
  • B. 11,13,15
  • C. 13,15,17
  • D. 7,9,11
Correct Answer: D
Explanation:
Solve a linear relation.
Related Question 4
Three numbers: 5/7 of the first equals 48% of the second, and the second is 1/9 of the third. Find first.
  • A. 168
  • B. 84
  • C. 42
  • D. 21
Correct Answer: D
Explanation:
Solve the proportion.
Related Question 5
Four prime numbers in ascending order, given the condition. Find the second number.
  • A. 17
  • B. 29
  • C. 23
  • D. 31
Correct Answer: B
Explanation:
Based on the given pattern.