Q170
The sum of two positive numbers is 240 and their HCF is 15. Find the number of pairs of numbers satisfying the given condition.
A.
5
B.
2
C.
8
D.
4
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
15(x + y) = 240x + y = 16
1 + 15 (Right)
2 + 14 (Wrong)
3 + 13 (Right)
4 + 12 (Wrong)
5 + 11 (Right)
6 + 10 (Wrong)
7 + 9 (Right)
8 + 8
Total pairs = 4