Question

Q15) By Which Smallest number 90 must be multiplied so as
to make it a Perfect Square?
(A) 10
(B) 2.
(C) 5
(D)3​

Answer 1

Answer:

90 must be multiplied with 10 to make it perfect square of 30.

Answer 2

❥ GIVEN :-

By Which Smallest number 90 must be multiplied so as to make it a Perfect Square ?

❥ OPTION :-

• (A) 10
• (B) 2
• (C) 5
• (D)3

❥ ANSWER :-

(A) 10

❥ EXPLANATION :-

90 × 10 = 900 which is the prime number at least because ,

• the number 3, 2, 5 are already a prime number

• a prime number cant be multiplied itself

• so the number which multiplied by prime number is not a prime number