10. The weight of an object on a particular scale is 125.2 lbs. The measured weight

may vary from the actual weight by at most 0.4 lbs. What is the range of actual

weights of the object?

A. 124 8 2 x 2 125.6

B. 124.8 2 x 125.6

C. 124 8 5 x 125.6

D. XS 124.8 or x 21256

Respuesta :

Given :

The weight of an object on a particular scale is 125.2 lbs.

The actual weight by at most 0.4 lbs.

To Find :

The range of actual  weights of the object.

Solution :

It is given that uncertainty in weight is 0.4 lbs.

So, minimum weight can be( 125.2 -0.4 ) = 124.8 lbs.

Maximum weight is given by  ( 125.2 + 0.4 ) = 125.6 lbs.

Therefore, the range of actual  weights of the object is between :

124.8  x 125.6 .

Hence, this is the required solution.