SSC CGL Tier II 1 Dec 2016 Paper 1

Question : 40 of 100

Marks: +1, -0

A businessman’s earning increases by 25% in one year but decreases by 4% in the next year. Going by this pattern, after 5 years, his total earnings would be Rs.72000. What is his present earning?

Rs. 10000
Rs. 80000
Rs. 40000
Rs. 54000

Validate

Solution:

(3) Let the business man’s present earning be Rs. x.
According to the question,

x ×{125}/{100} ×{96}/{100} ×{125}/{100}×{96}/{100} ×{125}/{100}

=72000

⇒x ×{5}/{4} \×{24}/{25}×{5}/{4}×{24}/{25}×{5}/{4}

=72000

⇒ x ×{9}/{5}=72000

⇒x= {72000 ×5}/{9}=R s .40000

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