GATE Electrical Engineering (EE) 2020 Solved Paper

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
1.2x=45
x=37.5
Let expenditure of Q in 2014 be y,
\%profit on expenditure is given as
0.1=‌

37.5−y

y

0.1y=37.5−y
1.1.y=37.5
y=34.09 or 34.1