Two employees X and Y are paid a total of Rs. 770 per week by their employer. If X is paid 120 percent of the sum paid to Y, how much is Y paid per week? Choose one: A) s . 150 B) s . 200 C) s . 250 D) s . 350 E) s . 400

Rationale: "let the amount paid to x per week = x and the amount paid to y per week = y then x + y = 770 but x = 120 % of y = 120 y / 100 = 12 y / 10 â ˆ ´ 12 y / 10 + y = 770 â ‡ ’ y [ 12 / 10 + 1 ] = 770 â ‡ ’ 22 y / 10 = 770 â ‡ ’ 22 y = 7700 â ‡ ’ y = 700 / 22 = 700 / 2 = rs . 350 d )"
Answer: D