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- Question
A house owner wants to get his house painted. He is told that this would require 45 kg of paint allowing 6% wasting. And if the paint is available in 4 kg tins only, the number of tins required for painting the house is ?
Options- A. 12
- B. 13
- C. 11
- D. 10
- Correct Answer
- 12
ExplanationGiven 45 kg for painting
And 6% 0f 45 for wasting => 6x45/100 = 2.7 kg
Now total paint required = 45+2.7 = 47.7 kgs
But tins are available in only 4kgs
Then, no. of tins req = 47.7/4 = 11.4 => 12 tins
- 1. The percentage discount offered for "Buy 6 get 1 free is" ?
Options- A. 85.78 %
- B. 58. 48 %
- C. 19.25 %
- D. 14.285 % Discuss
- 2. A farmer divides his herd of k cows among his 4 sons, so that one son gets one half of the herd, the second gets one-fourth, the third gets one-fifth and the fourth gets 9 cows. Then k is equal to ?
Options- A. 160
- B. 120
- C. 140
- D. 180 Discuss
- 3. A girl read 2/5 part of a book in 1st day, 34% in second day and remaining page in next two days. In two days she read equal number of page. If she read 52 pages on last day, then find out how many pages did the book contain?
Options- A. 400
- B. 376
- C. 382
- D. 356 Discuss
- 4. The length of a rectangular plot is increased by 50%, to keep its area unchanged, the width of the plot should be decreased by ______?
Options- A. 29.87%
- B. 33.33%
- C. 22.22%
- D. 19.5% Discuss
- 5. A number X is mistakenly divided by 10 instead of being multiplied by 10. What is the percentage error in the result?
Options- A. -99%
- B. +99%
- C. -100%
- D. +100% Discuss
- 6. 30% of 500 rupees is?
Options- A. Rs. 180
- B. Rs. 150
- C. Rs. 120
- D. Rs. 240 Discuss
- 7. A Shopkeeper charges sales tax of x% upto Rs.2,000 and above it he charges y%. A customer pays total tax of Rs 320, when he purchases the goods worth Rs. 6,000 and he pay's the total tax of Rs. 680 for the goods worth Rs. 12,000. The value of (x-y) is:
Options- A. 0
- B. -2
- C. -4
- D. 5 Discuss
- 8. 83% of 2350 = ?
Options- A. 1889.95
- B. 1912.35
- C. 1875.25
- D. 1950.50 Discuss
- 9. A student multiplied a number by 2/5 instead of 5/2. What is the percentage error in evaluation ?
Options- A. 52%
- B. 64%
- C. 84%
- D. 77% Discuss
- 10. In a test, minimum passing percentage for girls and boys is 35% and 40% respectively. A boy scored 483 marks and failed by 117 marks. What is the minimum passing marks for girls ?
Options- A. 625
- B. 525
- C. 425
- D. 325 Discuss
Percentage problems
Search Results
Correct Answer: 14.285 %
Explanation:
Total Items = 7
Discounted = 1
Percentage = 1/7 x 100
= 14.285%
Correct Answer: 180
Explanation:
Given total number of cows = k
Now, 1st son share = k/2
2nd son share = k/4
3rd son share = k/5
4th son share = 9
(k) + (k/4) + (k/5) + 9 = k
=> k - (19k/20) = 9
=> (20k-19k)/20 = 9
=> k = 180.
Correct Answer: 400
Explanation:
1st day the girl read = 40%
2nd day she read = 34 %
Remaining percentage of book = 100% - (40% +34%) = 26%
But given last two days she read equal number of pages
=> Each day she read 26%/2 = 13%
Last day she read 52 pages = 13%
13% = 52
1% = 4
=> 100% = 400
Total pages in the book is 400.
Correct Answer: 33.33%
Explanation:
% Decrease in Width =
= 33.33%
Correct Answer: -99%
Explanation:
By mistake = x/10
Actual value = x * 10
% Change = = 99% (negative)
Since actual value is greater than the wrong value.
Correct Answer: Rs. 150
Explanation:
Given 30% of 500
Hence, 30% of Rs. 500 = Rs. 150.
Correct Answer: -2
Explanation:
and
x = 4 and y = 6
x-y = -2
Correct Answer: 1950.50
Explanation:
Correct Answer: 84%
Explanation:
Let the number be 'x'
Then, according to the given data,
=
= 84%
Correct Answer: 525
Explanation:
Given 40% minimum passing marks for boys = 483 + 117 = 600
=> 1% = 600/40
=> 100% = 600 x 100/40 = 1500
Minimum passing marks for girls = 35% of 1500 = 35 x 1500/100 = 525.
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