Percentage- Aptitude Questions and Answers - in Hindi

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When the price of an item decreased by 20%, the number of items sold increased by 30%. What was the percentage increase on the total revenue?


जब किसी आइटम की कीमत मे 20% की कमी हुई, और बेची गई वस्तुओं की संख्या में 30% की वृद्धि हुई। तो कुल राजस्व पर प्रतिशत वृद्धि क्या थी?

A)
20%

B)
6%

C)
5%

D)
4%


Correct Answer :

4%


Explanation :

Let cost of each item = Rs.100 & sale = 100 item .
Revenue = Rs.(100*100) = Rs.10000

New cost per item= Rs.80 and New sale = 130 item
New Revenue = Rs.(80*130) = 10400

Percent Change =(new - old)/(old)= (400/10000)*100 = 4%

The difference between 78% of a number and 59% of the same number is 323. What is 62% of that number?


एक संख्या के 78% और उसी संख्या का 59% के बीच का अंतर 323 है। उस संख्या का 62% क्या है?

A)
1037

B)
1071

C)
1159

D)
1054


Correct Answer :

1054


Explanation :

The difference in percentage = 78% - 59% = 19%
i.e. 19% of a number = 323
Therefore, 62% of the number = 323 *( 62/19) = 1054

If 10% of x = 20% of y, then x:y is equal to?


यदि x का 10% = y का 20%, तो x : y बराबर है?

A)
1:2

B)
2:1

C)
5:1

D)
10:1


Correct Answer :

2:1


Explanation :

10% of x = 20% of y
10x/100 = 20y/100

x/10 = y/5
x/y = 10/5 = 2/1
x:y = 2:1

If Aditya’s salary is 25% more than Amit’s salary, then Amit’s salary is how much less than Aditya’s salary?


अगर आदित्य का वेतन अमित के वेतन से 25% अधिक है, तो अमित का वेतन ,आदित्य के वेतन से कितना कम है?

A)
16.67%

B)
32.5%

C)
20%

D)
22.5%


Correct Answer :

20%


Explanation :

Let Amit’s Salary is Rs. 100. Then,
Aditya’s Salary = (100 + 25% of 100) = Rs. 125.
Difference between Aditya’s Salary and Amit’s Salary = 125 - 100 = Rs. 25.
% Difference (lower) = (25/125)*100 = 20%

Amit’s salary is 20% lower than Aditya’s.

If the numerator of a fraction is increased by 150% and the denominator is increased by 300%,then the resultant fraction is 5/12 . What was the original fraction?


यदि किसी भिन्न संख्या के अंश में 150% वृद्धि की गई है और हर मे 300% वृद्धि की गई है,तो परिणामी भिन्न 5/12 है मूल भिन्न क्या था?

A)
2/3

B)
1/3

C)
3/5

D)
3/5


Correct Answer :

2/3


Explanation :

Let the original fraction =x/y

New fraction =(250x/100)/(400y/100)=5/12
250x/400y =5/12
5x/8y=5/12
x/y =8/12 =>2/3

The boys and girls in a college are in the ratio of 3 : 2. If 25% of the boys and 20% girls are adults, percentage of students who are minor is?


एक कॉलेज में लड़के और लड़कियां 3: 2 के अनुपात में हैं। यदि 25% लड़के और 20% लड़कियां वयस्क हैं, तो अवयस्क छात्रों का प्रतिशत क्या है?

A)
75%

B)
77%

C)
80%

D)
90%


Correct Answer :

77%


Explanation :

Suppose boys = 3x and girls = 2x
Number of minors= (75% of 3x) + (80% of 2x)
=(75*3x/100)+(80*2x/100)
= 9x/4 + 8x/5 =77x/20

Required percentage =(77x/20)*(1/5x)*100 => 77%

The price of a car is Rs. 4,50,000. It was insured against accident to 90% of its price. When the car was damaged completely in an accident, the insurance company paid 95% of the insurance. What was the difference between the price of the car, and the amount received?


एक कार की कीमत 4,50,000 रुपये है। इसे दुर्घटना के खिलाफ 90% कीमत पर बीमा किया गया था। जब कार दुर्घटना में पूरी तरह से क्षतिग्रस्त हो गई, बीमा कंपनी ने बीमा का 95% भुगतान किया। कार की कीमत और प्राप्त राशि के बीच क्या अंतर था?

A)
Rs. 65,000

B)
Rs. 65,500

C)
Rs. 65,250

D)
Rs. 66,000


Correct Answer :

Rs. 65,250


Explanation :

The price of a car = 450000
Car was insured to 90% of its price,so insured price =450000*90/100
Insurance company paid 95% of the insurance
so amount paid by insurance company=450000*90/100 * 95/100=45*90*95 =384750
the difference between the price of the car and the amount received

=450000 − 384750
=65250

Raman's salary increased by 5% this year. If his present salary is 1806, how much was the last year's salary?


रमन के वेतन में इस वर्ष 5 % की वृद्धि हुई। यदि उसका वर्तमान वेतन 1806 है, तो पिछले वर्ष का वेतन कितना था?

A)
1720

B)
1620

C)
1520

D)
1801


Correct Answer :

1720


Explanation :

Let , raman's previous year's salary is X.
As given, X+X*(5/100) =1806
X*(21/20)=1806
X=(1806*20)/21 =1720

In an examination, 80% of boys have passed in english and 85% have passed in mathematics while 75% boys passed in both. If 45 boys failed in both subjects, then the total number of boys participated in the examination?


एक परीक्षा में 80% लड़के अंग्रेजी में पास हुए हैं और 85% गणित में पास हुए हैं जबकि 75% लड़के दोनों विषय में पास हुए। यदि 45 लड़के दोनों विषयों में फेल हुए, तो परीक्षा में बैठे लड़कों की कुल संख्या बताइए?

A)
400

B)
450

C)
200

D)
250


Correct Answer :

450


Explanation :

Percent of failing boys in both subjects=100-(80+85-75) %
=10%
Let the total number of boys participated in the examination=X
As given, 10% of X=45
X*(10/100)=45
X=(45*100)/10 = 450

If Y% of one hour is, 1 minute 12 seconds then Y is equal?


यदि 1 घंटे का Y% 1 मिनट 12 सेकंड है तो Y बराबर है?

A)
2

B)
1

C)
1/2

D)
1/4


Correct Answer :

2


Explanation :

One hour = 3600 seconds
1 min 12 sec = 60 + 12 = 72 seconds
As is given, Y% of 3600=72
3600*(Y/100) = 72
Y=2

A number on substracting 15 it reduces to 80%. What is the 40% of that number?


एक संख्या में 15 घटाने पर वह 80% रह जाती है। उस संख्या का 40% क्या है?

A)
75

B)
60

C)
30

D)
90


Correct Answer :

30


Explanation :

Let the number is X
As is given, X-15= 80% of X
X-15= X*(80/100) = 4*X/5
5X-75=4X
X=75
Hence , 40% of that number= 40% of 75 =75*(40/100) =30

If X% of A is the same, as Y% of B, then Z% of B will be ?


यदि A का X% उतना ही है, जितना B का Y%, तो B का Z% परसेंट होगा?

A)
(YX/X)% of A

B)
(ZX/Y)% of A

C)
(XY/Z)% of A

D)
(Y/Z)% of A


Correct Answer :

(ZX/Y)% of A


Explanation :

As is given, X% of A=Y% of B
A*(X/100)=B*(Y/100)
A*X=B*Y
B=A*(X/Y)

So , Z% of B = B*(Z/100)
Z% of B = A*(X/Y) *(Z/100) = (ZX/Y)% of A

The value of a machine decreases by 5 percent annually. If its present value is 200000, then its value 2 years later?


किसी मशीन के मूल्य में प्रतिवर्ष 5 परसेंट का ह्रास होता है। यदि उसका वर्तमान मूल्य 200000 है, तो 2 वर्ष बाद उसका मूल्य होगा ?

A)
180500

B)
199000

C)
180000

D)
210000


Correct Answer :

180500


Explanation :

depreciation at the end of two year = 200000*(1 - 5/100)2
= 200000* 19/20 * 19/20
=180500

One third of 1206, is what percentage of 134 ?


1206 का एक तिहाई, 134 का कितने प्रतिशत है?

A)
100%

B)
150%

C)
200%

D)
300%


Correct Answer :

300%


Explanation :

1206*(1/3) => 402
required percentage = (402/134 )*100 =300%

If the number of women in a village is 90% of the number of males. So, what percentage of the number of men of the number of women?


यदि किसी गांव में स्त्रियों की संख्या पुरुषों की संख्या का 90% हो, तो पुरुषों की संख्या स्त्रियों की संख्या का कितने प्रतिशत होगी?

A)
100%

B)
105%

C)
108%

D)
111%


Correct Answer :

111%


Explanation :

Let the number of males=100 , Then number of women=90
Required percentage = (100/90)*100 = 111% ~

If a% of a + b% of b = 2% of ab, then what percent of a is b?


यदि a का a% + b का b% = ab का 2% है, तो a का कितना प्रतिशत b है?

A)

50%


B)

75%


C)

100%


D)

200%



Correct Answer :

100%


Explanation :

As is given, a% of a + b% of b = 2% of ab
a/100 *a + b/100 *b = 2/100 *ab

a2 + b2 = 2ab
a2 - 2ab + b2 = 0
(a - b)2 = 0
a = b

Hence, Required percentage = b/a *100
= a/a *100
= 100%

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