PERCENTAGE QUIZZES
Q.1 : If 40% of 1640 + X = 35% of 980 + 150% of 850 then find the value of X ?
- A - 692
- B - 962
- C - 926
- D - 952
Correct Answer is option - B Explanation :
40% of 1640 + X = 35% of 980 + 150% of 850
or, 656 + X = 343 + 1275
or, X = 1618 - 656 = 962
Q.2 : What percent of 120 is 24 ?
- A - 20
- B - 25
- C - 10
- D - 30
Correct Answer is option - A Explanation :
Let X% of 120 = 24
Then, X/100 × 120 = 24
or, X = (24 × 100)/120
or, X = 20
Q.3 : If of a number is 33. Then find the number ?
- A - 72
- B - 81
- C - 99
- D - 91
Correct Answer is option - C Explanation :
Let the number be X. Then,
of X = 33
or, 1/3 × X = 33
or, X = 33 × 3 = 99
Q.4 : In an examination Shan got 25% of maximum marks and failed by 75 marks. Kuchi got 200 marks and failed by 20%. What is the maximum marks in the examination ?
- A - 2000
- B - 2500
- C - 1800
- D - 2200
Correct Answer is option - B Explanation :
Let the maximum marks be 100%. Then,
25% + 75 = 200 + 20%
or, 25% - 20% = 200 - 75
or, 5% = 125
or, 100% = 125/5 × 100 = 2500
.·. The maximum marks = 2500
Q.5 : 40% of the population of a city are men and 35% are women. If the number of children are 30,000 then find the number of women in that city ?
- A - 40000
- B - 50000
- C - 45000
- D - 42000
Correct Answer is option - D Explanation :
Let the total population of the city be 100%. Then,
Children = 100% - (Men % + Women %) = 100% - (40% + 35%)
= 100% - 75% = 25%
.·. 25% == 30000
.·. 35% == 30000 × 35/25 = 1200 × 35 = 42000
Q.6 : A's income is 25% more than B's income. Then find the B's income is less than A's income by what percent ?
- A - 25%
- B - 30%
- C - 20%
- D - 35%
Correct Answer is option - C Explanation :
We know the formula, e.g. if A is R% more than B, then B is less than A by:
[ × 100 ]%. Then,
[(25/125) × 100]% = 20%
Q.7 : If 75% of a number is added to 80, then the result is the number itself. Find the number ?
- A - 320
- B - 420
- C - 240
- D - 480
Correct Answer is option - A Explanation :
Let the number be 100%. Then,
100% - 75% == 80
or, 25% == 80
or, 100% == (80 × 100)/25 = 80 × 4 = 320
Q.8 : If X% of 932 + 30 = 309.6. Then find the value of X ?
- A - 25
- B - 35
- C - 30
- D - 20
Correct Answer is option - C Explanation :
X% of 932 + 30 = 309.6
or, X of 932% = 309.6 - 30
or, X of 9.32 = 279.6
or, X = 279.6/9.32 = 27960/932 = 30
Q.9 : The price of a table is Rs. 400 more than that of a chair. If 6 tables and 6 chairs together cost Rs. 4800, by what percent is the price of the table more than that of the chair ?
- A - 250%
- B - 100%
- C - 150%
- D - 200%
Correct Answer is option - D Explanation :
Let the price of a chair be Rs. X. Then,
The price of a table = Rs. (X + 400)
According to the question, 6(X + 400) + 6X = 4800
or, 6X + 2400 + 6X = 4800
or, 12X = 4800 - 2400 = 2400
or, X = 200
.·. The price of a chair = 200 and the price of a table = 600
.·. The required percentage = [(400/200) × 100]% = 200%
Q.10 : 5% of income of A is equal to 15% of income of B and 10% of income of B is equal to 20% of income of C. If C's income is Rs. 2000, then find the total income of A, B and C ?
- A - Rs. 18000
- B - Rs. 14000
- C - Rs. 20000
- D - Rs. 8000
Correct Answer is option - A Explanation :
5% of A = 15% of B → A = 3B
and 10% of B = 20% of C → B = 2C → B = 2 × 2000 → B = Rs. 4000
.·. A = 3B → A = 3 × 4000 = Rs. 12000
Hence, the total income of (A + B + C) = (2000 + 4000 + 12000) = Rs. 18000
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