a man spends 2 / 5 of his salary on house rent , 3 / 10 of his salary on food and 1 / 8 of his salary on conveyence . if he has rs . 1400 left with him , find his expenditure on food and conveyence .
"let the salary be x , therefore house rent = 2 x / 5 , food = 3 x / 10 , conveyence = x / 8 . it is given that left over salary is 1400 / - so , x - ( 2 x / 5 + 3 x / 10 + x / 10 ) = 1400 by solving x = 8000 expenditure on food = 3200 and conveyence = 1000 answer : c"
add(multiply(divide(1400, subtract(1, add(add(divide(2, 5), divide(3, 10)), divide(1, 8)))), divide(3, 10)), multiply(divide(1400, subtract(1, add(add(divide(2, 5), divide(3, 10)), divide(1, 8)))), divide(1, 8)))