Question

Which number in the option below can be expressed as a power of 5? select one:

a. 1171875

b. 62595

c. 390625

d. 2353725?

Answer 1

hey mate ur ans

I think c 390625. can be expressed in powers of 5

hope it helps

Answer 2

Answer: D. 390625

Step-by-step explanation:

Since, a number a can be expressed as the power of 5,

If $a^\frac{1}{b}$ = 5

Where b is any whole number.

Since, only a number having last two digit 25 can be some power of 5,

Thus, A and B can not be the answers,

Now, we will check only,

C and D,

Since, $(390625)^{\frac{1}{a}}=5$

$\implies a = 8$

but, $(2353725)^{\frac{1}{a}=5$

$a\neq \text{ a whole number}$

Thus, Only option C can be expressed as a power of 5.