Question

Refer to the pie charts and answer the given questions.
Q. Number of male members in A and D increased by equal numbers from 2008 to 2009. If the respective ratio between number of male members in health club A and D in 2009 is 17:11, what is the number of male members in health club D in 2009?

• A. 308
• B. 352
• C. 374
• D. 396
• E. 330

Answer 1

The correct option is B 352

Number of male members in 2008 in club $A=\frac{20}{100}\times 2400=480$
Number of male members in 2008 in club $D=\frac{12}{100}\times 2400=288$
Now, $480+n:288+n=17x:11x$
Subtracting, we get $6x=192\Rightarrow x=32$
Number of male members in 2009 in club $D=11\times 32=352$