a person deposits 1 / 16 of his income as provident fund and 1 / 15 of the remaining as insurance premium . if he spends 5 / 7 of the balance on domestic needs and deposits an amount of rs . 50 in the bank , his total income would be
( 1 - ( 1 / 16 ) ) ( 1 - ( 1 / 15 ) ) ( 1 - ( 5 / 7 ) ) of income = 50 hence income = 200 answer : b
divide(50, subtract(subtract(subtract(1, divide(1, 16)), divide(subtract(1, divide(1, 16)), 15)), multiply(subtract(subtract(1, divide(1, 16)), divide(subtract(1, divide(1, 16)), 15)), divide(5, 7))))