Question

Find the smallest integer x to be multiplied with 270 to make it a perfect square
(A) 5
(B) 15
(C) 20
(D) 30​

Answer 1

Answer:

(D) 30

Step-by-step explanation:

To make a number a perfect square we need to check its factorization

270 = 27 x 10

270 = 3 x 3 x 3 x 2 x 5

270 = ( 3 x 3 ) x ( 30 )

Therefore 30 is the number to be multiplied to 270 to make it a perfect square

And the perfect square = 8100 = ( 90 x 90 )

HOPE IT HELPS