Discussion
Home ‣ Aptitude ‣ Percentage Comments
- Question
- On deceasing the price of T.V. set by 30%. Its sale in increased by 20%. What is the effect on the revenue received by the shopkeeper?
Options- A. 10% increased
- B. 10% decreased
- C. 16% increased
- D. 16% decrease
- Correct Answer
- 16% decrease
ExplanationLet price = Rs. 100, sale = 100
Then sale value = Rs. (100 x 100) = Rs. 10000
New sale value = Rs. (70 x 120) = Rs. 8400
Decrease% = (1600/10000) x 100 % = 16% - 1. 3 litres of water is added to 15 litres of a mixture of a 20% solution of alcohol in water. The strength of alcohol is now?
Options- A. 121/2%
- B. 162/3%
- C. 24%
- D. 16% Discuss
- 2. Water tax is increased by 20% but its consumption is decreased by 20%. Then the increase or decrease in the expenditure of the money is?
Options- A. No change
- B. 5% decrease
- C. 4% increased
- D. 4% decreased Discuss
- 3. The price of sugar is increased by 20%. If the expenditure is not allowed to increased. Then ratio between the reduction in consumption and the original consumption?
Options- A. 1 : 3
- B. 1 : 4
- C. 1 : 6
- D. 1 : 5 Discuss
- 4. In a college election, a candidates secure 62% of the votes and is elected by majority of 144 votes. The total number of votes polled is?
Options- A. 600
- B. 800
- C. 925
- D. 1200 Discuss
- 5. Two numbers are less than a third number by 30%and 37% respectively. How much percent is the second number less than the first?
Options- A. 3%
- B. 4%
- C. 7%
- D. 10% Discuss
- 6. The population of a town is 8000. It increases by 10% during first year and by 20% during the second year. The population after 2 years will be?
Options- A. 10400
- B. 10560
- C. 10620
- D. None of these Discuss
- 7. A papaya was planted 2 years ago. It increases at the rate of 20% every year. If at present, the height of the tree is 540 cm, what was it when the tree was planted?
Options- A. 324 cms
- B. 375 cms
- C. 400 cms
- D. 432 cms Discuss
- 8. The value of a machine depreciates 10% annually. If its present value is Rs. 4000. Its value 2 years later will be?
Options- A. Rs. 3200
- B. Rs. 3240
- C. Rs. 3260
- D. Rs. 3280 Discuss
- 9. The population of a town increase 4% annually but is decreases by emigration annually to the extent of 1/2%. What will be the increase percent in three years?
Options- A. 9.8
- B. 10
- C. 10.5
- D. 10.8 Discuss
- 10. A man's wages were decreased by 50%. Again the reduced wages were increased by 50%. He has a loss of?
Options- A. 0 %
- B. 0.25 %
- C. 2.5 %
- D. 25 % Discuss
Percentage problems
Search Results
Correct Answer: 162/3%
Explanation:
Alcohol in 15 litres =(20 x 15)/100 litres = 3 litres
Now, alcohol in 18 litres = 3 litres
? strength of alcohal =(3/18) x 100 % = 162/3%
Correct Answer: 4% decreased
Explanation:
Let tax = Rs. 100 and Consumption = 100 units
Original expenditure = Rs. (100 x 100) = 10000
New expenditure = Rs. (120 x 80) = Rs. 9600
? Decreased in expenditure = (400 x 100)/1000 % = 4%
Correct Answer: 1 : 6
Explanation:
Reduction in consumption = (20/120) x 100% = 50/3%
? Reduction in consumption /Original consumption = (50/3) / 100 = 1/6 = 1 : 6
Correct Answer: 600
Explanation:
? (62% of N - 38% of N) =144
? 24% of N = 144
? N = (144 x 100)/24 = 600
Correct Answer: 10%
Explanation:
Let third number be N
Then, first number = 70% of N = 7N/10 and,
Second number = 63% of N = 63N/100
Difference = 7N/10 - 63N/100 = 7N/100
? Required percentage = (7N/100) x (10/7N) x 100 % = 10%
Correct Answer: 10560
Explanation:
Population after 2 years
=8000(1 + 10/100) (1 + 20/100)
= (8000 x 11/10 x 6/5) = 10560
Correct Answer: 375 cms
Explanation:
? 540 = H(1 + 20/100)2
? H = (540 x 5/6 x 5/6) = 375 cm
Correct Answer: Rs. 3240
Explanation:
Value of machine 2 years later = Rs. [ 4000 x {(1 - 10)/10)}2]
= Rs. (4000 x 9/10 x 9/10)
= Rs. 3240
Correct Answer: 10.8
Explanation:
Increase in 3 years over 100 = 100 x {1 + 7/(2 x 100)}3
= (100 x 207/200 x 207/200 x 207/200)
= (200 + 7)3 / 80000
= 88869743 / 80000 = 110.8718
Required increase % = (110.8 - 100)% = 10.8%
Correct Answer: 25 %
Explanation:
Let original wages = Rs. 100
Reduced wages = Rs. 50
Increased wages = 150% of Rs. 50 = (150 x 50)/100 = Rs. 75
? Loss = 25%
Comments
There are no comments.More in Aptitude:
Programming
Copyright ©CuriousTab. All rights reserved.