Question

The monthly salary of a, b, c are in ratio of 2:3:5. if c's monthly salary is rs 1200 more than that of a, then b's annual salary is

Answer 1

$let \: the \: \:a \: salary = 2x \\ let \: the \: b \: salary \: = 3x \\ let \: the \: c \: salary = 5x \ : 2x + 3x + 4x = 1200 \\ x = 1200 \div 10 = 120 \\ a \: salary \: = 2x = 2 \times 120 = 240 \\ b \: salary = 3x = 3 \times 120 = 360 \\ c \: salary = 5x = 5 \times 120 = 600 + 1200 = 1800$