what is the least number which should be added to 2982 so that the sum is exactly divisible by 5 , 6 , 4 , and 3 ?
"l . c . m . of 5 , 6 , 4 and 3 = 60 . when dividing 2982 by 60 , the remainder is 42 . the number to be added = 60 - 42 = 18 . the answer is b ."
add(3, add(4, add(6, add(5, multiply(5, const_2)))))