Percentage Questions and Answers updated daily – Aptitude


Percentage Questions and Answers updated daily – Aptitude



124 Percentage Questions and answers section with explanation for various online exam preparation, various interviews, Aptitude Percentage online test. Percentage Questions with detailed description, explanation will help you to master the topic.

Percentage Questions

1. Akash scored 73 marks in subject A. He scored 56% marks in subject B and 'X' marks in subject C. Maximum marks in each subject were 150. The overall percentage marks obtained by Akash in all the three subjects together were 54%. How many marks did he score in subject C ?



SHOW ANSWER
Correct Ans:86
Explanation:
Given, Maximum marks of each subject = 150
No. of subjects = 3
=> Total maximum marks of 3 subjects = 3 * 150 = 450

Given, Akash scored
in Subject A = 73 marks (out of 150)
in Subject B = 56 % of 150
= (56 / 100) * 150
= 84 marks (out of 150)

and in Subject C = X marks (out of 150)

Given, Overall percentage of marks scored by Akash = 54%
=> {Marks scored by Akash in (Subject A + Subject B + Subject C) / Total maximum marks of 3 subjects} * 100% = 54%
=> {(73 + 84 + X) / 450} * 100 = 54
=> (73 + 84 + X) = 54 / 100 * 450
=> (157 + X) = 243
=> X = 243 - 157
=> X = 86

Thus, Marks scored by Akash in Subject C = 86 marks.


2. In an acoustics class, 120 students are male and 100 students are female. 25% of the male students and 20% of the female students are engineering students. 20% of the male engineering students and 25% of the female engineering students passed the final exam. 

What percentage of engineering students passed the exam?



SHOW ANSWER
Correct Ans:22%
Explanation:
Given,
Total No. of male students in the class = 120
Percentage Male engineering student = 25 %
=> No. of Male engineering student = 25 % of 120
= (25 / 100) * 120
= 30

Percentage of male engineering students who passed the final exam = 20%
=> No. of Male engineering student who passed the final exam = 20% of No.of male engineering students
= (20 / 100) * 30
= 6

Given,
Total No. of female students in the class = 100
Percentage female engineering student = 20 %
=> No. of female engineering student = 20 % of 100
= (20 / 100) * 100
= 20

Percentage of female engineering students who passed the final exam = 25%
=> No of female engineering student who passed the final exam = 25% of No.of female engineering students
= (25 / 100) * 20
= 5

Required Percentage = {No. of (Male + female) engineering student who passed the final exam} / Total No. of (Male + female) engineering student * 100%
= { (6 + 5) / (30 + 20)} *100%
= {11 / 50} * 100%
= 22 %


3. Two tailors X and Y are paid a total of Rs. 550 per week by their employer. If X is paid 120 percent of the sum paid to Y, how much is Y paid per week? 



SHOW ANSWER
Correct Ans:250
Explanation:
Let, the sum paid to Tailor X per week be Rs. X
and the sum paid to Tailor Y per week be Rs. Y

Given, Two tailors X and Y are paid a total of Rs. 550 per week
=> X + Y = 550 ---> eqn (1)

Given, X is paid 120 percent of the sum paid to Y
=> X = 120 % of Y
=> X = (120 / 100) * Y
=> X = (6 / 5) * Y
On substituting this value for X in eqn (1), we get

=> (6 / 5) * Y + Y = 550
=> (6Y + 5Y) / 5 = 550
=> 11Y = 550 * 5
=> 11Y = 2750
=> Y = 2750 / 11
=> Y = 250 Rs.

Thus, the sum paid to Tailor Y per week be Rs. 250


4. In a certain school, 20% of students are below 8 years of age. The number of students above 8 years of age is ( 2 / 3) of the number of students of 8 years of age which is 48. What is the total number of students in the school? 



SHOW ANSWER
Correct Ans:100
Explanation:
Let the Total number of students in the school be X

So, Total students (X) = (No. of students below 8 years of age) + (No. of students of 8 years of age) + (No. of students above 8 years of age) ----> eqn (1)

Given, Students below 8 years of age = 20%
=> No. of Students below 8 years of age = 20% of X
= (20/100) * X
= (1/5) * X
= X/5

Given No. of Students of 8 years of age = 48

No. of Students above 8 years of age = (2/3) * 48
= 32

Substituting required values in eqn (1), we get
X = (X/5) + 48 + 32
=> X - (X/5) = 48 + 32
=> (5X - X) / 5 = 80
=> 4X / 5 = 80
=> X = (80 * 5) / 4
=> X = 100

Therefore, the total number of students in the school = 100


5. Solve the given expression :

18.5 % of 200 + 50.5 / 100 of 1400 + 20 % of 500



SHOW ANSWER
Correct Ans:844
Explanation:
Given
To find out the value of the expression.
=> (18.5 / 100) * (200) + (50.5 / 100) * 1400 + (20 / 100 * 500)
=> ( 37) + (707) + ( 100)
=> 844

The value of the expression is 844.


6. An article worth Rs. 1200 is given two successive discounts of 10 % and 10 % respectively. What is the percentage of discount which is equivalent to give as single discount? 



SHOW ANSWER
Correct Ans:19 %
Explanation:
Given,two successive discount of 10 %.
Let, x = First discount = 10%, y = seconddiscount = 10%

Total Discount % = (x + y - [xy/100])%
= (10 + 10 - [10x10/100])%
= (20 - [100/100])%
= (20 - 1)%
=19%

Total Discount % which is equivalent for two successive discount of 10 % = 19%


7. What is 11.5% of 4000?



SHOW ANSWER
Correct Ans:460
Explanation:
11.5% of 4000 = (11.5/100 ) x 4000 = 460


8. What is 15.25% of 3500?



SHOW ANSWER
Correct Ans:533.75
Explanation:
15.25% of 3500 = (15.25/100 ) x 3500 = 533.75


9. What is 14.5% of 3500? 



SHOW ANSWER
Correct Ans:507.5
Explanation:
14.5% of 3500
= (14.5/100 ) x 3500
= 507.5.


10. What is 13.75% of 3500?



SHOW ANSWER
Correct Ans:481.25
Explanation:
13.75% of 3500 = (13.75/100 ) x 3500 = 481.25


11. What is 13% of 3500?



SHOW ANSWER
Correct Ans:455
Explanation:
13% of 3500 = (13/100 ) x 3500 = 455


12. What is 12.25% of 3500?



SHOW ANSWER
Correct Ans:428.75
Explanation:
12.25% of 3500 = (12.25/100 ) x 3500 = 428.75


13. What is 11.5% of 3500?



SHOW ANSWER
Correct Ans:402.5
Explanation:
11.5% of 3500 = (11.5/100 ) x 3500 = 402.5


14. What is 15.25% of 3000?



SHOW ANSWER
Correct Ans:457.5
Explanation:
15.25% of 3000 = (15.25/100 ) x 3000 = 457.5


15. What is 14.5% of 3000?



SHOW ANSWER
Correct Ans:435
Explanation:
14.5% of 3000 = (14.5/100 ) x 3000 = 435


16. What is 13.75% of 3000?



SHOW ANSWER
Correct Ans:412.5
Explanation:
13.75% of 3000 = (13.75/100 ) x 3000 = 412.5


17. What is 13% of 3000?



SHOW ANSWER
Correct Ans:390
Explanation:
13% of 3000 = (13/100 ) x 3000 = 390


18. What is 12.25% of 3000? 



SHOW ANSWER
Correct Ans:367.5
Explanation:
12.25% of 3000
= (12.25/100 ) x 3000
= 0.1225 x 3000
= 367.5


19. What is 11.5% of 3000?



SHOW ANSWER
Correct Ans:345
Explanation:
11.5% of 3000 = (11.5/100 ) x 3000 = 345


20. What is 15.25% of 2500?



SHOW ANSWER
Correct Ans:381.25
Explanation:
15.25% of 2500 = (15.25/100 ) x 2500 = 381.25



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