Percentage Aptitude Questions Practice Question and Answer
8 Q: If income tax is increased by 24 % , the net income is reduced by 1 % . The rate of income tax is
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5e7f49521425f51f3ac3ca53- 16false
- 24true
- 35false
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Answer : 2. "4 "
Q: A box contains 56 in the form of coins of one rupee, 50 paise and 25 paise. The number of 50 paise coins is double the number of 25 paise coins and four times the number of one rupee coins. How many 50 paise coins are there in the box?
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5f3f8ceb9b782961da384895- 152false
- 216false
- 332false
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Answer : 4. "64"
Q: The expenses on rice, fish and oil of a family are in the ratio 12 : 17 : 3. The price of these articles are increased by 20 % , 30 % and 50 % respectively. The total expenses of family on these articles are increased by:
1837 05f17e9b99679b57327a8a51c
5f17e9b99679b57327a8a51c- 1$$28{1\over 8}\%$$true
- 2$$30{1\over 8}\%$$false
- 3$$14{1\over 8}\%$$false
- 4$$7{1\over 8}\%$$false
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Answer : 1. "$$28{1\over 8}\%$$"
Q: In an examination, 93% of students passed and 252 failed. The total number of students appearing at the examination was:
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5f3f8c6454900c5349e2de55- 14200false
- 23850false
- 33950false
- 43600true
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Answer : 4. "3600"
Q: If the population of a town is 12.000 and the population increases at the rate of 10% per annum, then find the population. after 3 years.
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6426e27c72ca731a990e28e2- 115,972true
- 212,200false
- 311,200false
- 410,200false
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Answer : 1. "15,972"
Explanation :
To find the population after 3 years given that it increases at a rate of 10% per annum, you can use the formula for exponential growth:
𝑃=𝑃0×(1+𝑟)𝑛P=P0×(1+r)n
Where:
- 𝑃P = Population after 𝑛n years
- 𝑃0P0 = Initial population
- 𝑟r = Rate of increase (in decimal form)
- 𝑛n = Number of years
Given:
- 𝑃0=12,000P0=12,000 (Initial population)
- 𝑟=0.10r=0.10 (10% increase per annum)
- 𝑛=3n=3 (Number of years)
Substitute these values into the formula:
𝑃=12,000×(1+0.10)3P=12,000×(1+0.10)3
𝑃=12,000×(1.10)3P=12,000×(1.10)3
𝑃=12,000×(1.331)P=12,000×(1.331)
𝑃=15,972P=15,972
So, the population after 3 years would be approximately 15,972.
Q: Due to a 25% increase in the price of rice per kg. a person is able to purchase 20 kg. less for Rs.400. What is the increased price of rice per kg.?
1823 060376f859792c13b2858af01
60376f859792c13b2858af01- 16false
- 28false
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Answer : 3. "5"
Q: 78 is divided into two parts in such a way that the ratio of quadruple of the first part and five times the second part is 14: 15. The first part is
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5f1e6fb23b87486bfc5383ba- 136false
- 242true
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Answer : 2. "42"
Q: Ram spends 40 % of his salary on food, 20% on house rent, 10% on entertainment and 10% on conveyance. If his savings at the end of a month are ₹ 1500, then his salary per month (in ₹) is:
1811 05f2e51dabe9f31290fbceedf
5f2e51dabe9f31290fbceedf- 1₹ 6000false
- 2₹ 10000false
- 3₹ 8000false
- 4₹ 7500true
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