Data Interpretation Ques 209

Directions : Refer to the graph and answer the given questions.

Data related to number of elephants in two Reserves A and B of country $X$ during 6 years.

Number of elephants in reserve A decreased by $25 \%$ from 2006 to 2007 and number of elephants in reserve $B$ increased by $15 \%$ from 2006 to 2007. What was the total number of elephants in reserves A and B together in 2007 ?

(1) 172

(2) 164

(3) 158

(4) 174

(5) 166

Show Answer

Correct Answer: (2)

Solution: (2) Number of elephants in 2007 :

Reserve $A \Rightarrow \frac{96 \times 75}{100}=72$

Reserve $B \Rightarrow \frac{80 \times 115}{100}=92$

$\therefore$ Total number of elephants in 2007

$=72+92=164$

Calculations (389-393) :

Cost price of 1 mouse

$=$ Rs. 1000

C.P. of 1 table

Rs. $(13.5 \times 1000)=$ Rs.

13500

C.P. of 1 chair

$=$ Rs. $\left(\frac{3}{5} \times 13500\right)$

$=$ Rs. 8100

C.P. of 1 air conditioner

$=$ Rs. $(8100 \times 5)$

$=$ Rs. 40500

C.P. of 1 monitor

$ \begin{aligned} & =\frac{8100 \times 120}{100} \\ & =\text { Rs. } 9720 \\ & \text { C.P. of } 1 CPU \\ & =\text { Rs. }(13500+1500) \\ & =\text { Rs. } 15000 \\ & \text { C.P. of } 1 \text { key-board } \\ & =\text { Rs. }(4 \times 1000) \\ & =\text { Rs. } 4000 \end{aligned} $