Question

The number of illiterate persons in a country decreased from 150 lakhs to 120 lakhs in 5 years. What is the percentage of decrease?


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Answer 1

Answer:

GIVEN : the number of illiterate persons in a country decreased from 150 lakhs to 120 lakhs in 5 years

TO FIND : what is the percentage of decrease?

SOLUTION : the original count is 150 lakhs

the new count is 120 lakhs

THE DECREASING PRCENTAGE IS GIVEN BY

decreasing percentage =

original count - new count

original count

* 100

decrease pecentage=

150-120*

150*100

decrease percentage=30

150*100

Decrease percentage is 20

.

. . , the percentage of decrease is 20 percent