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- Question
In one year, the Amount collected for social welfare, of a village increased by 10% and in the next year, it decreased by 10%. If at the end of 2nd year, the amount was 7920, what was it in the beginning ?
Options- A. 8800
- B. 8650
- C. 8000
- D. 8980
- Correct Answer
- 8000
ExplanationLet the amount collected be 'A'
Then, from the given conditions,
A x 110/100 x 90/100 = 7920
A x 0.99 = 7920
A = 7920/0.99
=> 8000 - 1. The value of a machine depreciates at the rate of 10% every year. It was purchased 3 years ago. If its present value is Rs. 8,748, its purchase price was ?
Options- A. Rs.14,000
- B. Rs.12,000
- C. Rs. 12,800
- D. Rs. 15,000 Discuss
- 2. Two numbers are respectively 40% and 30% more than a third number. The second number expressed in terms of percentage of the first is ?
Options- A. 92.8%
- B. 84.23%
- C. 87.14%
- D. 94.1% Discuss
- 3. Ajay who is a King, at his eleventh hour, called his three queens and distributed his gold in the following way: He gave 50% of his wealth to his first wife, 50% of the rest to his second wife and again 50% of the rest to his third wife. If their combined share is worth1,30,900 kilograms of gold, find the quantity of gold King Ajay was having initially?
Options- A. 153145 kgs
- B. 147890 kgs
- C. 152400 kgs
- D. 149600 kgs Discuss
- 4. If the price of a commodity is decreased by 20% and its consumption is increased by 10%, what will be the increase or decrease in the expenditure on the commodity?
Options- A. increase 12%
- B. decrease 12%
- C. increase 16%
- D. decrease 16% Discuss
- 5. What will come in place of the question mark(?) in the following question ? 56% of 870 + 82% of 180 = 32% of 90 + ?
Options- A. 777
- B. 666
- C. 606
- D. 789 Discuss
- 6. In an election between two candidates K and L, the number of valid votes received by K exceeds those received by L by 15% of the total number of votes polled. If 20% of the votes polled were invalid and a total of 8720 votes were polled, then how many valid votes did L get ?
Options- A. 3241
- B. 2457
- C. 2642
- D. 2834 Discuss
- 7. What is 70 of 50?
Options- A. 35
- B. 38
- C. 42
- D. 44 Discuss
- 8. 4 45 of 259.99 = ? % of 1247.9
Options- A. 96
- B. 100
- C. 78
- D. 88 Discuss
- 9. 82.5% of 2360?
Options- A. 1960
- B. 1954
- C. 1947
- D. 1931 Discuss
- 10. In a city of engineers of 4800, the number of female engineers are 3/8th of them. The number of female engineers is what percentage of the number of male engineers?
Options- A. 76
- B. 60
- C. 56
- D. 52 Discuss
Percentage problems
Search Results
Correct Answer: Rs.12,000
Explanation:
We have P = 8748, R = -10 and n = 3
Therefore, the purchase price of the machine
=
=
= 8748 x (100/90) x (100/90) x (100/90)
= 12,000.
Therefore, the purchase price of the machine was Rs. 12,000.
Correct Answer: 92.8%
Explanation:
Here, x = 40 and y = 30;
Therefore second number
= [[
] x 100 ]% of first number
= [[
] x 100 ]% of first number
Second number = 92.8% of the first number.
Correct Answer: 149600 kgs
Explanation:
Let the total quantity of gold be p kgs.
According to the question,
50% of p + 25% of p + 12.5% of p = 130900
87.5% of p = 130900
p = 130900 x 100/87.5 = 149600 kgs.
Therefore, the initial gold quantity that king has = p = 149600 kgs.
Correct Answer: decrease 12%
Explanation:
Given the price of a commodity is decreased by p = 20%
And its consumption is increased by q = 10%
Now, required increase or decrease in the expenditure on the commodity can be
p + q + pq/100 = -20 + 10 - 200/100 = -10 - 2 = -12%.
Hence, decrease in the expenditure = 12%
Correct Answer: 606
Explanation:
56% of 870 = 56x870/100 = 487.20
82% of 180 = 82x180/100 = 147.60
32% of 90 = 32x90/100
487.20 + 147.6 - 28.8 = ?
? = 634.8 - 28.8
? = 606.
Correct Answer: 2834
Explanation:
Let the total number of votes polled in the election be 100k.
Number of valid votes = 100k - 20% (100k) = 80k
Let the number of votes polled in favour of K and L be a and b respectively.
a - b = 15% (100k) => a = b + 15k
=> a + b = b + 15k + b
Now, 2b + 15k = 80k and hence b = 32.5k
It is given that 100k = 8720
32.5k = 32.5k/100k x 8720 = 2834
The number of valid votes polled in favour of L is 2834.
Correct Answer: 35
Explanation:
what is 70 of 50 means 70% of 50
Hence, 70 of 50 is 35.
Correct Answer: 100
Explanation:
Given
of 259.99 = ? % of 1247.9
24/5 x 260 = ? x 1248/100
? = 1248 x 100/1248
? = 100.
Correct Answer: 1947
Explanation:
Given 82.5% of 2360
Correct Answer: 60
Explanation:
Total engineers = 4800
Number of female engineers = 3/8 x 4800 = 1800
Then, number of male engineers = 4800 - 1800 = 3000
Now, required is female engineers is what percentage of the number of male engineers
=> 1800 is what % of 3000
=> p x 3000/100 = 1800
=> 30p = 1800
p = 60%
Hence, female engineers is 60 percentage of the number of male engineers.
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