Percentage Practice Question and Answer
8 Q: In an election 10 % of the voters on the voter's list did not cast their votes and 60 voters cast their ballot paper blank. There were only two candidates. The winner was supported by 47 % of all the voters in the list and he got 308 votes more than his rival. The number of voters on the list was
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5ef56e56d7fe8173219bf1da- 14575false
- 26028false
- 33600false
- 46200true
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Answer : 4. "6200 "
Q: Peter bought an item at 20% discount on its original price. He sold it with 40% increase on the price he bought it. The new sale price is greater than the original price (in percent) by:
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5e86cebfb22d214bc7c92c8c- 110false
- 28false
- 37.5false
- 412true
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Answer : 4. "12"
Q: A man gives 20% of his money to his eldest son, 30% of remaining he gives to his younger son. 10% of the remaining he gives in a school for poor boys still he has Rs.100.80. Find his total sum.
1446 060a213b2b1d2440614b906a9
60a213b2b1d2440614b906a9- 1Rs.800false
- 2Rs.600false
- 3Rs.400false
- 4Rs.200true
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Answer : 4. "Rs.200"
Q: The price of sugar increases by 15%. By what percentage should the consumption of sugar be decreased so that the expenditure on the purchase of sugar remains the same? [Give your answer correct to 2 decimal places.]
1445 0643d140332185cce373eec85
643d140332185cce373eec85- 111.11%false
- 212.5%false
- 314.16%false
- 413.04%true
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Answer : 4. "13.04%"
Explanation :
To solve this problem, let's denote:
- Initial price of sugar = P
- Initial quantity consumed = Q
- Initial expenditure = PQ
After the price increases by 15%, the new price becomes 1.15P.
To keep the expenditure constant, the new quantity consumed (let's call it Q') can be calculated using the formula:
New expenditure = New price × New quantity
Setting the new expenditure equal to the initial expenditure:
PQ = (1.15P) * Q'
Now, solve for Q':
Q' = PQ / (1.15P)
Simplify:
Q' = Q / 1.15
Now, let's find the percentage decrease in consumption:
Percentage decrease = [(Q - Q') / Q] * 100
Substituting the value of Q':
Percentage decrease = [(Q - (Q / 1.15)) / Q] * 100
Percentage decrease = [(Q * (1 - 1/1.15)) / Q] * 100
Percentage decrease ≈ [(1 - 0.8696) * 100] ≈ 13.04%
Therefore, the consumption of sugar should be decreased by approximately 13.04% to keep the expenditure on the purchase of sugar the same after a 15% increase in price.
Q: Aman's expenses are 30% more than Vimal's expenses and Vimal's expenses are 10% less than Raman's expenses. If the sum of the expenditure of all three is Rs. 6,447, then what is the Expenditure of Aman?
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5f7ee02a0a69ab3becbf7035- 1Rs. 2200false
- 2Rs. 2457true
- 3Rs.1890false
- 4Rs.2100false
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Answer : 2. "Rs. 2457"
Q: Mr. Ankit invests 14% of his monthly income every month i.e. Rs.1,750 in shares, 8% in Insurance policies and 7% in fixed deposits. What is the total annual amount invested by him?
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62c7e4318d44102313b1fead- 1Rs. 3275false
- 2Rs. 3450false
- 3Rs. 3625false
- 4Rs. 3800false
- 5None of thesetrue
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Answer : 5. "None of these"
Q: If there is a 25 percent reduction in the price of rice, a person can buy 10 kg more rice for Rs 600. The reduced price per kg of rice is.
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5f75a572c995cb2bd590fc7e- 1Rs. 30false
- 2Rs. 25false
- 3Rs. 20false
- 4Rs. 15true
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Answer : 4. "Rs. 15"
Q: Two numbers are respectively 20% and 50% of a third number. What percent is the first number of the second?
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5ef45d72d7fe81732198d339- 130%false
- 240%true
- 310%false
- 420%false
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