a number whose fifth part increased by 5 is equal to its fourth part diminished by 5 is ?
"answer let the number be n . then , ( n / 5 ) + 5 = ( n / 4 ) - 5 ⇒ ( n / 4 ) - ( n / 5 ) = 10 ⇒ ( 5 n - 4 n ) / 20 = 10 ∴ n = 200 option : c"
divide(add(5, 5), subtract(divide(const_1, 5), divide(const_1, add(const_1, 5))))