Q:if x= 2x10^5 and y=3x10^-3 correct to one significant figure,find the greatest and least possible value of:

Question

i)x/y

Answer 1

The greatest value is 2.5*10^5/2.5*10^-3 = 1.00*10^8.

The numerator is the largest number that rounds off to 2*10^5 and the denomimator is the smallest number that rounds off to 3*10^-3.

The least value is 1.5*10^5/3.5*10^-3 = 4.29*10^7

Answer 2

thanx a ton...u helped me a lot...