Question

Mr. X spends 40% of his monthly salary on food, 10% on clothes, 15% on house rent and
invests 20%. After all these, he is left with Rs. 12900. What is his total monthly income?
A) Rs. 90000
B) Rs. 86000
C) Rs. 88000
D) Rs. 84000​

Answer 1

Step-by-step explanation:

$Total \: expenditure \: of \: Mr. \:X-$

$=> (40 + 10 + 15 + 20)$%

$=> 85$%

$remaining \: salary = 12,900$

$12900 = 15$%

$4300 = 5$%

$Total \: monthly \: salary =\frac{4300}{5}×100$

$=> 4300 × 20 = 86000Rs.$