Question

The price of a bowl is 5.50 dollars. The price of certain number of bowls is 5500 dollars. Which of the following gives the value of the exponent x?

5.50 $\times$ ${10}^x$ = 5,500

• A. 2
• B. 3
• C. 4
• D. 5

Answer 1

The correct option is B 3

It is given that,

5.50 $\times$ ${10}^x$ = 5,500

If we consider x = 1, we get,

5.50 $\times$ 10 = 55

It does not satisfy the given expression.



If we consider x = 2, we get,

5.50 $\times$ 100 = 550

It does not satisfy the given expression.



If we consider x = 3, we get,

5.50 $\times$ 1000 = 5500

This satisfies the given expression.



Hence, the value of x is 3 in the given expression.