Percentage(Quantitative Aptitude ) Questions and answers for exam Preparation

Quantitative Aptitude

PERCENTAGE MCQs

Percentages

Total Questions : 2296 | Page 227 of 230 pages

Question 2261. Masood’s salary is reduced by 10% and then reduced salary is increased by 10%. Find ,how many percentage his present salary is less as compared to his previous salary?

Nothing
10%
1%
5%

Discuss Question

Answer: Option C. -> 1%
10*10
——– = 1%
100

Question 2262. If population of certain city increases at the rate of 5%. If population in 1981 was 138915, then population in 1978 was__________?

1,20,000
1,10,000
1,00,000
90,000

Discuss Question

Answer: Option A. -> 1,20,000
X * (105/100) * (105/100) * (105/100) = 138915
X = 138915/1.157625
X = 120000

Question 2263. At an examination in which full marks were 500. A got 10% less than B, B got 25% more than C and C got 20% less than D. If A got 360 marks, what percentage of full marks was obtained by D?

Discuss Question

Answer: Option C. -> 80%
A B C D
90 100 80 100
A D
90 —– 100
360 —— ? = 400
500 —— 400
100 ——- ? => 80%

Question 2264. The tax on a commodity is diminished by 20% but its consumption is increased by 10%. Find the decrease percent in the revenue derived from it?

Discuss Question

Answer: Option D. -> 12%
100 * 100 = 10000
80 * 110 = 8800
10000——- 1200
100 ——- ? = 12%

Question 2265. There were two candidates in an election. Winner candidate received 62% of votes and won the election by 288 votes. Find the number of votes casted to the winning candidate?

456
744
912
1200

Discuss Question

Answer: Option B. -> 744
W = 62% L = 38%
62% – 38% = 24%
24% ——– 288
62% ——– ? => 744

Question 2266. A mixture of 70 liters of wine and water contains 10% water. How much water must be added to make water 12 ½% of the total mixture?

12 liters
10 liters
4 liters
2 liters

Discuss Question

Answer: Option D. -> 2 liters
70 * (10/100) = 7
WINE WATER
87 1/2% 12 1/2%
87 1/2% ——- 63
12 1/2% ——-? => 9-7=2

Question 2267. 5% people of a village in Sri Lanka died by bombardment, 15% of the remainder left the village on account of fear. If now the population is reduced to 3553, how much was it in the beginning?

3800
4200
4400
5500

Discuss Question

Answer: Option C. -> 4400
X * (95/100) * (85/100) = 3553
X = 4400

Question 2268. The amount of water (in ml) that should be added to reduce 9 ml. Lotion, containing 50% alcohol, to a lotion containing 30% alcohol, is__________?

Discuss Question

Answer: Option D. -> 6
4.5 4.5
30% 70%
30% —– 4.5
70% ——? => 10.5 – 4.5 = 6 ML

Question 2269. In a factory, there are 40% technicians and 60% non-technicians. If the 60% of the technicians and 40% of non-technicians are permanent employees, then the percentage of workers who are temporary is________?

Discuss Question

Answer: Option C. -> 52%
TOTAL = 100
T= 40 NT= 60
40*(60/100)=24 60*(40/100)=24
24 + 24 = 48 => 100 – 48 = 52%

Question 2270. A salesman’s terms were changed from a flat commission of 5% on all his sales to a fixed salary of Rs.1000 plus 2.5% commission on all sales exceeding Rs. 4,000. If his remuneration as per new scheme was Rs. 600 more than that by the previous schema, his sales were worth?