### Aptitude - Percentage

Rajeev buys good worth Rs. 6650. He gets a rebate of 6% on it. After getting the rebate, he pays sales tax @ 10%. Find the amount he will have to pay for the goods.

A.  Rs. 6576.10/-

B.  Rs. 6686.10/-

C.  Rs. 6756.10/-

D.  Rs. 6876.10/-

Rs. 6876.10/-

Explanation :

=> Rebate = 6% of Rs. 6650 = ( 6 / 100 ) x 6650 = Rs. 399/-

=> Sales Tax = 10% of ( 6650 - 399 ) = ( 10 / 100 ) x 6251 = Rs. 625.10/-

=> Final Amount = 6251 + 625.10 = Rs. 6876.10/-

Two numbers A and B are such that the sum of 5% of A and 4% of B is two-third of the sum of 6% of A and 8% of B. Find the ratio of A : B

A.  3 : 4

B.  2 : 4

C.  4 : 2

D.  4 : 3

4 : 3

Explanation :

5% of A + 4% of B = 2 / 3 ( 6% of A + 8% of B )

=> ( 5 / 100 ) x A + ( 4 / 100 ) x B = 2 / 3 ( ( 6 / 100 ) x A + ( 8 / 100 ) x B )

=> ( ( 1 / 20 ) x A + ( 1 / 25 ) x B ) = ( 1 / 25 ) x A + ( 4 / 75) x B

=> A / B = 100 / 75

=> A / B = 4 / 3 = 4 : 3

Two students appeared at an examination. One of them secured 9 marks more than the other and his marks was 56% of the sum of their marks. What are the marks obtained by them?

A.  13, 22

B.  23, 32

C.  33, 42

D.  43, 52

33, 42

Explanation :

Let their marks be ( x + 9 ) and x

Then, x + 9 = 56 / 100 ( x + 9 + x )

=> 25 ( x + 9 ) = 14 ( 2x + 9 )

=> 3x = 99

=> x = 33

so their marks are 33 and 33 + 9 = 42

=> 33, 42

A batsman scored 110 runs which included 3 boundaries and 8 sixes, What percent of his total score did he make by running between the wickets?

A.  50.45

B.  61.45

C.  45.45

D.  49.45

45.45

Explanation :

Number of runs made by running = 110 - ( 3 x 4 + 8 x 6 )

= 110 - 60

= 50

Percentage Required = ( 50 / 110 ) x 100 = 500 / 11 = 45.45%

What percentage of numbers from 1 to 70 has 1 or 9 in the unit's digit?

A.  19

B.  20

C.  21

D.  22

20

Explanation :

The numbers between 1 to 70 (including 1) that have 1 or 9 at the end (unit's place) are 1, 9, 11, 19, 21, 29, 31, 39, 41, 49, 51, 59, 61, 69.

So, total numbers are 14

Percentage that 14 constitutes of 70 = ( 14 / 70 ) x 100 = 20%

What percent of 7.2 kg is 18 gms ?

A.  .25%

B.   .5%

C.  .75%

D.   1%

.25%

Explanation :

Required percentage = (18/7200 * 100)% =  1/4% = 0.25%

12.5% * 33% * 40% * 3333.55 =?

A.  2350

B.  1250

C.  552

D.  55

55

Explanation :

12.5% = 0.125

33% = 0.33

40% = 0.4

0.125*0.33*0.4*3333.55 = 55.003575

The difference between a discount of 50 % on Rs. 500 and two successive discounts of 45 % and 5% on the same amount is

A.  Rs 15

B.  Rs 11.25

C.  Rs 10

D.  None of these

Rs 11.25

Explanation :
No Explanation available for this question

A wholesaler allows a discount of 10% on cash payment. The value of the article for which the customer paid Rs. 180 is-

A.  Rs. 212

B.  Rs. 188

C.  Rs.200

D.  none of these.

Rs.200

Explanation :
No Explanation available for this question

A sum of money at simple interest amounts to Rs. 815 in 3 years and to Rs. 854 in 4 years. The sum is

A.  Rs. 650

B.   Rs. 690

C.  Rs. 698

D.  Rs. 700

Rs. 698

Explanation :
No Explanation available for this question

If A=x% of y and B = y% of x, then which of the following is true?

A.  A is smaller than B

B.  A is greater than B

C.  Relationship between A and B cannot be determined.

D.  If x is smaller than y, then A is greater than B.

E.  None of these

None of these

Explanation :
No Explanation available for this question

80% of p = 40% of Q and Q = X % P . Then the value of x is

A.  360

B.  200

C.  300

D.  250

200

Explanation :
No Explanation available for this question

Murali purchased 20 dozens of toys at the rate of Rs. 375 per dozen. He sold each one of them at the rate of Rs. 33. Find out his profit percentage.

A.  3.5

B.  5.6

C.  4.1

D.  3.4

5.6

Explanation :
No Explanation available for this question

What will be the difference between simple and compound interest @ 10% per annum on a sum of Rs. 1000 after 4 years?

A.  Rs. 31

B.  Rs. 32.10

C.  Rs. 40.40

D.  Rs. 64.10

E.  None of these

Rs. 64.10

Explanation :
No Explanation available for this question

A 9% stock yields 8%. The market value of stock is

A.  Rs.72

B.  Rs. 92

C.  Rs.112.50

D.  Rs.116.50

Rs.112.50

Explanation :
No Explanation available for this question

If A = x% of y and B = y% of x, then which of the following is true?

A.  A is smaller than B

B.  A is greater than B.

C.  Relationship between A and B cannot be determined

D.  If x is smaller than y, then A is greater than B.

E.  None of these

None of these

Explanation :
No Explanation available for this question

160% of 250+?=120% of 400

A.  160

B.  40

C.  80

D.  120

E.  None of these

80

Explanation :
No Explanation available for this question

By investing Rs.1620 in 8% stock .Michael earns Rs. 135. The stock is then quoted at

A.  Rs. 80

B.  Rs. 96

C.  Rs.106

D.  Rs.108

Rs. 96

Explanation :
No Explanation available for this question

If a material is sold for Rs.34.80, there is a loss of 25%. Find out the cost price of the material?

A.  Rs.46.40

B.  Rs.44

C.  Rs.42

D.  Rs.47.20

Rs.46.40

Explanation :
No Explanation available for this question

An automobile financier claims to be leading money at simple interest, but he includes the interest every six months for calculating the principal. If he is charging an interest of 10%, the effective rate of interest becomes:

A.  10%

B.  10.25%

C.  10.5%

D.  None of these

10.25%

Explanation :
No Explanation available for this question

When processing flower-nectar into honeybees' extract, a considerable amount of water gets reduced. How much flower-nectar must be processed to yield 1kg of honey, if nectar contains 50% water, and the honey obtained from this nectar contains 15% water?

A.  1.5 kgs

B.  1.7 kgs

C.  3.33 kgs

D.  None of these

1.7 kgs

Explanation :
No Explanation available for this question

A man invests a certain sum of money at 6%.p.a simple interest and another sum at 7%.p.a. simple interest. His income from interest after 2 years was Rs.354. One-fourth of the first sum is equal to one-fifth of the second sum. The total sum invested was:

A.  Rs. 2600

B.  Rs. 2700

C.   Rs. 2880

D.  Rs. 2900

Rs. 2700

Explanation :
No Explanation available for this question

The price of oil is increased by 25%. If the expenditure is not allowed to increase, the ratio between the reduction in consumption and the original consumption is

A.  1 : 3

B.  1 : 4

C.  1 : 5

D.  1 : 6

1 : 5

Explanation :
No Explanation available for this question

A sum of money invested at compound interest amounts to Rs. 4624 in 2 years and to Rs. 4913 in 3 years. The sum of money is:

A.  Rs. 4096

B.  Rs. 4260

C.  Rs. 4335

D.  Rs. 4360

Rs. 4096

Explanation :
No Explanation available for this question

Of an amount, 20% of 25% of 30% is Rs. 75. Then what is the original number?

A.  Rs. 1000

B.  Rs. 2500

C.  Rs. 4000

D.  Rs. 5000

E.  None of these

Rs. 5000

Explanation :
No Explanation available for this question

The present population of a country estimated to be 10 crores is expected to increase to 13.31 crores during the next three years. The uniform rate growth is :

A.  8%

B.  10%

C.  12.7%

D.  15%

10%

Explanation :
No Explanation available for this question

If the price of a book is first decreased by 25% and then increased by 20%, then the net change in the price will be:

A.  No change

B.  5% increase

C.  5% decrease

D.  10% decrease

10% decrease

Explanation :
No Explanation available for this question

If the interest on Rs. 800 exceeds that on Rs. 600 by Rs. 15.50 in 6 months, find the rate percent p.a.

A.  15.5 %

B.  18.5 %

C.  14%

D.  5Top of Form

15.5 %

Explanation :
No Explanation available for this question

If 20% of a = b, then b% of 20 is the same as:

A.  4% of a

B.  5% of a

C.  20% of a

D.  None of these

4% of a

Explanation :
No Explanation available for this question

The number which exceeds 16 % of by 42 is:

A.  50

B.  58

C.  52

D.  60