quants-percentage -quiz3

Percentage Quiz-3

Dear Readers,

Maths is an important subject in CLAT,DULLB & Other Law Exams. In any of law exam, Maths carries weightage of 20 -25 % of questions. With focused practice good marks can be fetched from this section. These questions are very important in achieving your success in CLAT, DULLB and Other Law Exams..

Q1.As marks in biology are 20 less than 25% of the total marks obtained by him in Biology, Mathematics and Drawing. If his marks in Drawing be 50, what are his marks in mathematics?

•  40
•  45
•  50
•  Can’t be determined

Solution

Marks in drawing = 50

Marks in Biology = B = 25% (B + M + D) - 20

Þ 0.75B = 0.25M – 7.5

Therefore, Cannot be determined

Q2. In an election between two candidates, one got 55% of the total valid votes. 20% of the votes were invalid. If the total number votes were 7500, the number of valid votes that the other candidates got was:

•  2700
•  2900
•  3000
•  3100

Solution

Valid votes = 80% x 7500 = 6000

Other candidate votes = 45% x 6000 = 2700 

Q3. At an election involving two candidates, 68 votes were declared invalid. The winning candidate scores 52% and wins by 98 votes. The total number of votes polled is:

•  2518
•  2450
•  2382
•  None of these

Solution

Difference of votes = 52%x - (48%x + 68) = 98

4%x = 166      Þ x = 4150 

Q4. Pranav spent 30% of his salary on food 15% on clothing and 20% on other expenditure. If he saves Rs. 280 a month, what is his monthly salary?

•  700
•  800
•  900
•  1000

Solution

Saving = 100 - 30% - 15% - 20%

= 35% = 280

Salary = 280/ 35% = 800 

Q5. A sum of Rs. 700 was distributed among 4 people, such that B gets 20% more than A, and C gets 30% more than B. If D gets Rs. 136, how much does C get?

•  431
•  214
•  234
•  344

Solution

B = 1.2A and C = 1.3B

700 = A + B + C + D =

[{c/(1.2 x 1.3)}+(c/1.3)}] + c + 136

=C{(1.56+1.2+1)/1.56} + 136          \ C ={(362x1.56)/3.76}  = 234 

Q6.In a town there are 2500 men and 2500 women. If men’s population increased by 20% and women’s population decreased by 20%, now women as a percentage of men is

•  60%
•  66%
• 80%
•  83%

Solution
            (No of women / No of men)=
=[{2500x(100-20)}/{2500x(100+20)}]=80/120
%=(80/120) X100=66.66%

Q7.Al Pacino invested 40% of his money in shares, 20% of rest in property and lost 25% of the remaining in a casino. What percentage does he have now?

•  15
•  40
•  42
•  36

Solution
 Money Left

= (100 - 40)% (100 - 20)% (100 – 25)%

= 60% x 80% x 75% = 36%

Directions (for questions 8 to 10): In an election, there were only two candidates. The losing candidate received 66.66 % of the votes the winner got. If the votes polled in favour of loser were 60 less than that of winner, then


Q8. How many votes did the loser get?

•  200
•  150
•  120
•  100

Solution
(loser/winner)=66.66%=2/3
W = 180; L = 120    

Q9. How many total votes were cast? 

•  200
•  300
•  400
•  500

Solution
Total = 120 + 180 = 300 

Q10. What percentage of the total votes did winner get

•  60
• 50
•  80
•  66.67

Solution
Percentage =180/300 = 60%