Percentage(Quantitative Aptitude ) Questions and answers for exam Preparation

Quantitative Aptitude

PERCENTAGE MCQs

Percentages

Total Questions : 2296 | Page 224 of 230 pages

Question 2231. Amir saves 32% of his monthly salary. If he spends Rs. 27200, then find his savings?

15400
14300
13200
12800

Discuss Question

Answer: Option D. -> 12800
LET THE MONTHLY SALARY OF AAMIR BE RS. X.
68% OF X = 27200
=> X = (27200 * 100)/68 = 40000
HIS SAVINGS = 32/100 * 40000 = 12800.

Question 2232. If P gets 25% more than Q, then by what percent does Q get less than P?

33 1/3%
30%
20%
16 2/3%
None of these

Discuss Question

Answer: Option C. -> 20%
LET Q GET 1 UNIT.
25% OF 1 UNIT = 1/4 = 0.25
P GETS (1 + 0.25) I.E., 1.25 UNITS.
DIFFERENCE = (1.25 – 1) = 0.25
REQUIRED PERCENTAGE = 0.25/1.25 * 100 = 1/5 * 100 = 20%

Question 2233. If two positive numbers are in the ratio 1/8 : 1/5, then by what percent is the second number more than the first?

40%
33 1/3%
60%
66 2/3%
None of these

Discuss Question

Answer: Option C. -> 60%
GIVEN RATIO = 1/8 : 1/5 = 5 : 8
LET FIRST NUMBER BE 5X AND THE SECOND NUMBER BE 8X.
THE SECOND NUMBER IS MORE THAN FIRST NUMBER BY 3X.
REQUIRED PERCENTAGE = 3X/5X * 100 = 60%.

Question 2234. If 25% of x is 15 less than 15% of 1500, then x is?

720
750
820
840
None of these

Discuss Question

Answer: Option D. -> 840
25% OF X = X/4 ; 15% OF 1500 = 15/100 * 1500 = 225
GIVEN THAT, X/4 = 225 – 15 => X/4 = 210 => X = 840.

Question 2235. If the price of an article went up by 20%, then by what percent should it be brought down to bring it back to its original price?

16 2/3%
20%
22 1/3%
15%
None of these

Discuss Question

Answer: Option A. -> 16 2/3%
LET THE PRICE OF THE ARTICLE BE RS. 100.
20% OF 100 = 20.
NEW PRICE = 100 + 20 = RS. 120
REQUIRED PERCENTAGE = (120 – 100)/120 * 100
= 20/120 * 100 = 50/3 = 16 2/3%.

Question 2236. If 30% of a number exceeds 20% of it by 18, then find the number?

120
200
180
150
None of these

Discuss Question

Answer: Option C. -> 180
LET THE NUMBER BE X.
30% OF X = 30/100 * X = 3X/10
20% OF X = 20/100 * X = X/5 = 2X/10.
GIVEN THAT 3X/10 – 2X/10 = 18 => X = 180.
REQUIRED NUMBER IS 180.

Question 2237. If 15% of 30% of 50% of a number is 90, then what is the number?

4000
3050
4400
4500
None of these

Discuss Question

Answer: Option A. -> 4000
LET THE NUMBER BE A
GIVEN, 15/100 * 30/100 * 50/100 * A = 90
=> 3/20 * 3/10 * 1/2 * A = 90
=> A = 10 * 20 * 10 * 2 = 4000.

Question 2238. Bilal spends 45% of his monthly income on household items, 25% of his monthly income on buying cloths, 7.5% of his monthly income on medicines and saves the remaining amount which is Rs. 9000. Find his monthly income.

Rs. 40000
Rs. 36000
Rs. 50000
Rs. 45000
None of these

Discuss Question

Answer: Option A. -> Rs. 40000
LET THE MONTHLY INCOME OF AJAY BE RS. X
SAVINGS OF AJAY = X – (45 + 25 + 7.5)/100 * X = 22.5/100 X
22.5/100 X = 9000
X = 40000.

Question 2239. When the numerator of a fraction is decreased by 25% and its denominator is decreased by 20%, the new fraction obtained is 3/4. Find the original fraction?

5/4
4/7
5/6
6/7
None of these

Discuss Question

Answer: Option E. -> None of these
LET THE FRACTION BE X/Y.
WHEN THE NUMERATOR DECREASED BY 25% AND THE DENOMINATOR DECREASED BY 20%.
(X * 3/4)/(Y * 4/5) = 3/4 => X/Y = 3/4 * (4/5)/(3/4) = 4/5

Question 2240. If A got 80 marks and B got 60 marks, then what percent of A’s mark is B’s mark?

60%
80%
65%
75%
None of these

Discuss Question

Answer: Option D. -> 75%
A’S MARKS = 80 ; B’S MARKS = 60.
LET X% OF A = B => X/100 * 80 = 60
=> X = (60 * 100)/80 = 75
B’S MARKS IS 75% OF A’S MARKS.