IBPS Clerk Prelims Model Paper 18

According to question
H + W = 100 ⇒ H = 100 — W ...(i)

H−10

W−10

=

9

7

7H — 70 = 9W — 90
7(100 —W) —70 = 9W —90
700 — 7W — 70 = 9W — 90
700 + 90 — 70 = 9W + 7W
720 = 16W
W = 45
Age of wife = 45 years
H = 100 — W = 100 — 45 = 55 years
Age of husband (H) = 55 years