Percentage- Aptitude Questions and Answers - in Hindi

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Two students appeared for an examination. One of them secured 10 marks more than the other and his marks were 75% of the sum of their marks. The marks obtained by them are ?


दो छात्र एक परीक्षा के लिए उपस्थित हुए। उनमें से एक ने दूसरे की तुलना में 10 अंक अधिक हासिल किए और उसके अंक उन दोनों के अंकों के योग का 75% थे। उन दोनों के द्वारा प्राप्त अंक हैं ?

A)

52 and 42


B)

68 and 58


C)

63 and 53


D)

15 and 5



Correct Answer :

15 and 5


Explanation :

Let, the marks of first students be x Then marks of second students be (x + 10)
According to the questions (x + 10) = 75/100(x + x + 10)

x + 10 = 3/4 (2x + 10)
x + 10 = 3/2 (x + 5)
2x + 20 = 3x + 15
x = 5 and x + 10 = 15

A certain company has 120 employees who are engineers. Here, engineers constitute 30% of its work force. How many people are employed in the company?


एक कंपनी में 120 कर्मचारी हैं जो इंजीनियर हैं। यहां, इंजीनियर के 30% कार्यबल का गठन होता हैं। कंपनी में कितने लोग कार्यरत हैं?

A)

500


B)

400


C)

300


D)

200



Correct Answer :

400


Explanation :

Let the number of employee = X

30% of X = 120
(30/100)*X = 120
So, number of employee in company= X= 400

23% of a bucket full of diluted milk was water. If the quantity of pure milk in the bucket was 15.4 liter, then the capacity of the bucket was ?

A)
20 liter

B)
22 liter

C)
20.9 liter

D)
19.8 liter


Correct Answer :

20 liter


Explanation :

capacity of the bucket = X
water in the bucket = 23% of X = 23*X /100

pure milk in bucket = X - 23*X/100 = 15.4
=> 100*X - 23*X = 15.4 *100
=> 77*X = 1540
=> X = 20 liter

If x is 15% of y and y is 40% of z, then x+y is what % of z ?

A)
6

B)
21

C)
46

D)
55


Correct Answer :

46


Explanation :

Let z= 100

So, y is 40% of z = 40
x is 15% of y = 6

x+y= 46 that is 46% of z

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