Question

How many decimal places are in the product of the expression below? 25.6 x 14.2 A. one

B. Two
C. Three
D. four

Answer 1

the correct answer is b

Answer 2

B. Two.

Explanation:

The product of the expression =
`25.6*\ 14.2=363.52`

we can write 25.6 as
`(256)/(10)` and 14.2 as
`(142)/(10)`

Now product of 256 and 142 =
`(256)/(10) *(142)/(10) =(36352)/(100)`

Since there is two zeroes at the denominator, therefore the decimal will be placed after two digits counting from right to left, i.e.,

`25.6 * 14.2=(256)/(10)*(142)/(100) =(36352)/(100) =363.52`