model 1 simple percentage questions Section-Wise Topic Notes With Detailed Explanation And Example Questions

MOST IMPORTANT quantitative aptitude - 11 EXERCISES

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The following question based on percentage topic of quantitative aptitude

Questions : 32 is what per cent of 80 ?

(a) 36%

(b) 40%

(c) 24%

(d) 25.6%

The correct answers to the above question in:

Answer: (b)

Required percentage = $32/80$ × 100 = 40%

Practice percentage (model 1 simple percentage questions) Online Quiz

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Read more simple percentage Based Quantitative Aptitude Questions and Answers

Question : 1

If 20% of A = 50% of B, then what per cent of A is B ?

a) 25%

b) 15%

c) 30%

d) 40%

Answer: (d)

20% of A = 50% of B

2A = 5B ⇒ A = ${5B}/2$

Let B is x % of A.

${5B}/2 × x/100$= B

x = $200/5$ = 40%

Question : 2

0.15% of 33$1/3$% of Rs.10000 is :

a) Rs.0.05

b) Rs.105

c) Rs.5

d) Rs.150

Answer: (c)

0.15% of 33$1/3$% of Rs.10000

=$0.15/100 × 100/300 × 10000$= Rs.5

Question : 3

If 15% of (A + B) = 25% of (A – B), then what per cent of B is equal to A?

a) 200%

b) 400%

c) 10%

d) 60%

Answer: (b)

15% of (A + B) = 25% of (A – B)

$15/100(A + B) = 25/100(A - B)$

15 (A + B) = 25 (A – B)

15 A + 15 B = 25A – 25 B

10 A = 40 B

A = 4 B

Now, let x% of B is equal to A

$x/100×B =A ⇒ x/100×B =4B$

x = 400%

Question : 4

A box has 100 blue balls, 50 red balls, 50 black balls. 25% of blue balls and 50% of red balls are taken away. Percentage of black balls at present is

a) 33$1/3$%

b) 40%

c) 50%

d) 25%

Answer: (a)

After taking away respective balls,

Number of balls in the box = 75 + 25 + 50 = 150

Percentage of black balls = $50/150 × 100$

=$100/3 = 33{1}/3$%

Question : 5

2 is what percent of 50?

a) 4

b) 5

c) 2

d) 2.5

Answer: (a)

Let 2 be x% of 50

x% of 50 = 2

$x/100$× 50 = 2⇒ $x/2$ = 2

x = 4

Question : 6

What is to be added to 15% of 160 so that the sum may be equal to 25% of 240 ?

a) 60

b) 36

c) 24

d) 84

Answer: (b)

Required number = ${240 × 25}/100 - {160 × 15}/100$

= 60 – 24 = 36

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