Solution:5(15/17)% = (5 + 15/17)% = (100/17)%
(100/17)% of 510 = (1/17) × 510 = 30
7(1/7)% = (7 + 1/7)% = (50/7)% = (1/14) of the number
(1/14) of 140 = 10
11(1/9)% = (11 + 1/9)% = (100/9)%
(100/9)% of 81 = (1/9) × 81 = 9
Required value = 30 + 10 + 9 = 49