1)

For what value of * the statement $(\frac{*}{15})(\frac{*}{135})$ =1 is true?


A) 15

B) 25

C) 35

D) 45

Answer:

Option D

Explanation:

Let missing number be x
then $x^{2}= 15\times135$
$=> x= \sqrt{15\times135}=\sqrt{15^{2}\times 3^{2}}=15\times3=45$