Question

Today on 14 October I had post a question which is as follows

The present of a town is 20 , 0000 its population increased by 10% in the first year and 15% in second year find the population of the town at the end of two years. .

The answer I got was
Because in book they took twenty thousand not two lacs


So my query is that
Why they took twenty thousand and not two lacs

Answer 1

You can do this question if it is 20 thousand or 2 lacs. It may be in some book it is taken 20 thousand. It is not a problem. Here is answer by taking 2 lakhs.

First year increased = (10/100)*200000 = 20000
First year total population = 200000+20000=220000

Second year increased= (15/100)*220000= 33000
Total population after 2 years = 220000+33000= 253000
Answer is 253000- (two lakh fifty three thousand)
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