Question

A BOY WAS ASKED TO FIND THE LCM OF 3,5,12 AND ANOTHER NUMBER. BUT WHILE CALCULATING ,HE WROTE 21 INSTEAD OF 12 AND YET CAME THE CORRECT ANSWER. WHAT COULD BE THE FOURTH NUMBER?

Answer 1

The LCM of 3,5,12 is 60 and the boy must be facing some miracle to do that or solve that question