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- Question
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
- Correct Answer
- 400
Explanation1st 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.
- 1. 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
- 2. 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
- 3. The Shopkeeper increased the price of a product by 25% so that customer finds it difficult to purchase the required amount. But somehow the customer managed to purchase only 70% of the required amount. What is the net difference in the expenditure on that product?
Options- A. 10% more
- B. 5% more
- C. 12.5% more
- D. 17.5% more Discuss
- 4. 600 students took the test on physics and chemistry. 35% students failed in physics and 45% students failed in chemistry and 40% of those who passed in chemistry also passed in physics, then how many students failed in both:
Options- A. 162
- B. 138
- C. 60
- D. None of these Discuss
- 5. A number, when 35 is subtracted from it, reduces to its 80 percent. What is four - fifth of that number ?
Options- A. 175
- B. 140
- C. 135
- D. 95 Discuss
- 6. 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
- 7. 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
- 8. 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 Discuss
- 9. 30% of 500 rupees is?
Options- A. Rs. 180
- B. Rs. 150
- C. Rs. 120
- D. Rs. 240 Discuss
- 10. 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
Percentage problems
Search Results
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: 12.5% more
Explanation:
Quantity X Rate = Price
1 x 1 = 1
0.7 x 1.25 = 0.875
Decrease in price = (1-0.875) x 100 = 12.5%
Correct Answer: None of these
Explanation:
Physics Chemistry
Failed 35% 45%
Passed 65% 55%
Passed in both = 22% of total student
percentage of students who are passed in any of the physics or chemistry or both =(65+55) - 22 = 98%
So, the percentage of students who are failed in both = 2%
Therefore, total failed (in both subjects) students = 12
Correct Answer: 140
Explanation:
x - 35 = 80x/100
=> x = 175
=> 4x/5 = 4x175/5 = 140.
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: 14.285 %
Explanation:
Total Items = 7
Discounted = 1
Percentage = 1/7 x 100
= 14.285%
Correct Answer: 12
Explanation:
Given 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
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
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