GATE Electrical Engineering (EE) 2020 Solved Paper

Question : 10 of 65

Marks: +1, -0

The revenue and expenditure of four different companies P, Q, R and S in 2015 are shown in the figure. If the revenue of company Q in 2015 was 20% more than that in 2014, and company Q had earned a profit of 10% on expenditure in 2014, then its expenditure (in million rupees) in 2014 was ______ .

$32.7$
$33.7$
$34.1$
$35.1$

Validate

Solution:

Revenue of Q in 2015 is 20 % more than in 2014.
Q has earned a profit of 10% on expenditure in 2014.
Let the total revenue of Q in 2014 be x
Total revenue of Q in 2014 is

1.2 x=45

x=37.5

Let expenditure of

Q

in 2014 be

y

,
\%profit on expenditure is given as

10=\;{\;\text " revenue "\;-\;\text " expenditure "\;}/{\;\text " expenditure "\;} × 100

0.1=\;{37.5- {y}}/{ {y}}

0.1 {y}=37.5- {y}

1.1 . {y}=37.5

{y}=34.09

34.1

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