Problem 81P

A student loses 3.3 lb in one month. How many grams did he lose?

Solution 81P

Here,we have to convert the mass from american unit system of massa lb to g.

We know,

1 lb = 453.6 g

Weight of the student = 3.3 lb

The conversion factor =

Therefore, weight of the student in terms of g = 3.3lb x = 1496.88 g

= 1.497x 103 g

= 1.5 x 103 g (rounding off to two significant figures. The leftmost digit is more than 5 so the preceding number is increased by 1)

The weight loss by the student in terms of g is 1.5 x103 g