A man spends 1/5 of his salary on food, 1/10 of his salary on house rent and 3/5 of his salary on clothes. He still has $18000 left with him. Find his salary.	Pick
A) $180000  B) $280000  C) $380000  D) $480000  E) None
Solution:   The expenditure incurred on each item is expressed as part of the total amount (salary), so it is an independent activity.   In general for independent activities   [1 – (x1/y1 + x2/y2 + x3/y3)] × Total amount = Balance amount   [1 – (1/5 + 1/10 + 3/5)] × Total salary = $18000   [1 – 9/10] × Total salary = $18000   Therefore total salary = $18000 × 10 = $180000   $180000nswer $180000
<result>A</result>
A man spends 1/5 of his salary on food, 1/10 of his salary on house rent and 3/5 of his salary on clothes. He still has $18000 left with him. Find his salary.