TANCET 2012 Quant - Qn 43

This question tests your ability to express one variable in terms of the other. Level of difficutly easy.

If x = 2k – 2 and y = 4k^2, then what is y in terms of x?
1. x + 2
2. ((x + 2)^2)/2
3. (x + 2)^2
4.  x^2 + 4
5. (x + 4)^2

TANCET 2012 Quant - Percents - Q42

This question appeared in the Quant section of the TANCET 2012 Paper. An easy percents question.

Question

If S is 150 percent of T, then T is what percent of S + T?
1. 33.33%
2. 40%
3. 75%
4. 80%
5. 85%

Correct Answer: Choice 2. 40%

Explanatory Answer

The easiest way to solve this question is by assuming a value of T.

Take T to be 100.

Therefore, S = 150% of T = 150% of 100 = 150.

So, S + T = 150 + 100 = 250.

We need to find out T as a percent of S + T

i.e., (100 / 250)* 100 = 40%

For additional TANCET Percentage practice questions, click here