percentage Model Questions & Answers, Practice Test for ssc steno grade c d 2024

Answer: (b)

5% of 50% of 500

= $5/100 × 50/100 × 500 = 12.5$

Answer: (c)

Let the number be = x

$x = {153 × 4 × 100 × 100}/{3 × 15 × 40} = 3400$

Answer: (d)

Let total no of questions be x.

Now, Right questions = 12 = 60% of x.

0.6x = 12

x = 20

Answer: (a)

Required percentage = $1012/1150$ × 100 = 88

Answer: (c)

First expenditure:

Suppose 100 litres of petroleum at 100 units of money per litre, then total expenditure = 100 × 100 units of money = 10000 units of money.

Second expenditure:

Now 80 litres of petroleum at 140 units of money per litre, total expenditure = 80 × 140 units of money = 11200 units.

Expenditure increases by

${11200 - 10000}/10000 × 10$ = 12%

Short-cut:

$Exp_1 = PX, Exp_2$ = 1.4P (0.8X) = 1.12 PX.

Directly we see, answer = 12%.