NIMCET 2009 Question Paper with solutions

Directions (Q. Nos. 77-81) Study the pie charts given below and answer the following questions.

Question : 79 of 120

Marks: +1, -0

If transmission cost increases by

10 \%

and engine cost increases by

20 \%

, what is the percentage contribution of transmission cost with respect to the total cost?

Solution:

Percentage contribution of transmission cost

=\;{20+20 × 10 \%}/{50+20+20 × 10 \%+30+30 × 20 \%} × 100 \%

=\;{22}/{108} × 100 \%=\;{1100}/{54} \%=20 \%

(approx)

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