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1. Study the table carefully and answer the given questions.
Total exports of six countries over five years (in Rs. crore)
Profit = Exports - Imports.

Years → 1998 1999 2000 2001 2002

Country ↓

P 20 40 60 45 90

Q 30 25 15 50 100

R 50 55 70 90 65

S 45 60 20 15 25

T 60 50 55 100 110

U 24 40 60 75 120

By what percent is the average export of country T over all the given years more than the average export of country R over all the given years?

A. $13 \frac{7}{11}$ %

B. $9 \frac{1}{11}$ %

C. $13 \frac{5}{7}$ %

D. $4 \frac{7}{11}$ %

Solution:

Total export of country T
= 60 + 50 + 55 + 100 + 110
= 375
Average export of country T
=

\frac{375}{5}

= Rs. 75 crore
Total export of country R
= 50 + 55 + 70 + 90 + 65
= 330
Average export of country R
=

\frac{330}{5}

= Rs. 66 crore

\begin{aligned} ∴ Required % \\ = \frac{75 - 66}{66} \times 100 \\ = \frac{9}{66} \times 100 \\ = \frac{150}{11} % \\ = 13 \frac{7}{11} % \end{aligned}

Years →	1998	1999	2000	2001	2002
Country ↓	1998	1999	2000	2001	2002
P	20	40	60	45	90
Q	30	25	15	50	100
R	50	55	70	90	65
S	45	60	20	15	25
T	60	50	55	100	110
U	24	40	60	75	120

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