Question

The length of Martin's driveway, rounded to the nearest foot, is 121 ft. What is the minimum possible length of the driveway? A 121.0 ft B 120.5 ft C 120.9 ft D 120.3 ft

Answer 1

B. 120.5 ft

Explanation:

Given:

Length of Martins drive way = 121 ft

We need to find the minimum possible length of the driveway

Solution:

Now we know that ;

When a number is rounded to nearest whole number.

We can say that the number is in decimal format.

Also rounding techniques applies when the decimal number has digit 5 or more in ten's place after decimal then the number in increase by 1 as a whole number.

Here the number is rounded to nearest foot which is 121 ft.

So we an say that;

Number ranging from 120.50 to 120.99 can be made to 121 as nearest foot.

Hence the minimum possible length of the drive way could be 120.5 ft