Question

29. If a, b, c are positive integers, such that
1/a + 1/b +1/c = 29/72
Then how many sets of (a,b,c) exist?

(a) 3
(c) 5
(b) 4
(d) 6

Answer 1

Answer:

Ans : a. only three sets exist.

1. (a=27, b=9, c=4)

2. (a=36, b=8, c=4)

3. (a=9, b=8, c=6)