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Question

If in the year 2008, the income of both the companies A and B was the same, what was the respective ratio of expenditure of company A to the expenditure of company B in that year?

A
21:45
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B
7:9
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C
13:15
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D
Cannot be determined
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E
None of these
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Solution

The correct option is C 13:15
If the income of each company be Rs x lakh in 2008, then for company A,
50=xE1E1×100
150 E1=100x ...(i)
For company B, 30=xE2E2×100
130 E2=100x ...(ii)
Dividing Eqs. (i) by (ii)
E1E2=130150=13:15

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