In how many of the given numbers, the product of the first and the second digits, is a multiple of the third digit ?

Solution

Numbers : 732 517 293 315 638

Product of the first and the second digits :

732 = $$7\times3=21\neq2k$$

517 = $$5\times1=5\neq7k$$

293 = $$2\times9=18=3\times6$$

315 = $$3\times1\neq5k$$

638 = $$6\times3=18\neq8k$$

Thus, only in 293, the product of the first and the second digits, is a multiple of the third digit.

=> Ans - (B)

Share on Whatsapp Share on Whatsapp

Create a FREE account and get: