Percentage Practice Question and Answer
8 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 the cost price of 15 tables is equal to the selling price of 20 tables. The loss percent is:
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5f152d824cff381d1625a24d- 120%false
- 230%false
- 325%true
- 437.5%false
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Answer : 3. "25%"
Q: What is the 15 % of 34?
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606c3e54f306525d8e189780- 15false
- 25.1true
- 34.9false
- 45.2false
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Answer : 2. "5.1"
Q: In a company, there are 75% skilled workers and remaining ones are unskilled. 80% of skilled workers and 20% of unskilled workers are permanent. If number of temporary workers is 126, then what is the number of total workers?
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60585e6819447609ff02c0c5- 1480false
- 2510false
- 3360true
- 4377false
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Answer : 3. "360"
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.]
1349 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: Mr. Kulbhushan spends 35% of his income on food, 25% on transportation and 80% of the remaining on house rent. What percent of his income he is left with?
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5f589ce12025ff52f0528b68- 120 %false
- 212 %false
- 38%true
- 433 %false
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Answer : 3. "8%"
Q: In an examination, 93 % of students passed and 259 failed. The total number of students appearing at the examination was:
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5ef478edf2ebd073795cb3f2- 13950false
- 23850false
- 33700true
- 44200false
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Answer : 3. " 3700 "
Q: Two numbers are respectively 20% and 50% of a third number. What percent is the first number of the second?
1340 05ef45d72d7fe81732198d339
5ef45d72d7fe81732198d339- 130%false
- 240%true
- 310%false
- 420%false
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