three numbers are in the ratio 3 : 4 : 5 and their l . c . m is 2400 . their h . c . f is ?
"let the numbers be 3 x , 4 x and 5 x . then , their l . c . m = 60 x . so , 60 x = 2400 or x = 40 . the numbers are ( 3 * 40 ) , ( 4 * 40 ) and ( 5 * 40 ) . hence , required h . c . f = 40 . answer : a"
add(multiply(multiply(3, 5), const_100), multiply(4, 5))