- A2
- B1
- C3
- D4
Step-by-Step Solution
Let numbers be with a, co-prime. . Co-prime pairs (a,b): (1,12) and (3,4). So 2 pairs.
Answer: A) 2
The HCF of two numbers is 16 and their product is 3072.
How many such distinct pairs of numbers are possible?
Class 10HCF and LCMNumber Systems
Master this chapter in 30 minutes a day.
Don't just memorise the answer — build a daily practice habit.
Practice 5 Similar Questions Free →All HCF and LCM practice questions
More Class 10 HCF and LCM practice
A florist wants to arrange 84 marigolds and 98 roses in identical rows so that each row…Two positive integers a and b can be written as a = p^3 q^2 and b = p q^3, where p and q…Two positive integers a and b can be written as a = p^3 q^2 and b = p q^3, where p and q…The LCM of two numbers is 1200 and their HCF is 15. Which of the following CANNOT be the…Aman wants to tile a rectangular courtyard 6 m 30 cm long and 4 m 80 cm wide using…