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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
The side of square ABD is `20%` longer than the side of square PQRS. By what percentage is the area of ABCD more than the area of PQRS?A. `20%`B. `24%`C. `40%`D. `44%` |
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Answer» Correct Answer - D (i) Let a side of the square be 10 units. (ii) Let the side of square PQRS be 10 cm, then side of square ABCD is 12 cm. (iii) Find the areas of PQRS and ABCD and find the required percentage. |
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| 52. |
In a test Arun scored 20 % and failed by 10 marks Bala scored 40% in the same test and obtained 10 marks more than the pass mark. Find the maximum marks.A. 100B. 300C. 400D. 200 |
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Answer» Correct Answer - A difference in the percentage = Difference in the marks. |
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| 53. |
In the year 2000, rice formed `20%` of the total food grain production in a country. In the next year, the total food grain production increased by `20%` and the rice production was `25%` of the total food grain production. What is the increase in the production of rice from 2000 to 2001?A. `25%`B. `50%`C. `40%`D. `30%` |
| Answer» Correct Answer - B | |
| 54. |
26% of 640 is `"_____"` |
| Answer» Correct Answer - `166.4` | |
| 55. |
If X is 20 % more than Y then what per cent of Y is X ? |
| Answer» Correct Answer - `120%` | |
| 56. |
if .`(1)/(4) ` is 25 % , then `(9)/(16)` is `"_____"` |
| Answer» Correct Answer - `56.25%` | |
| 57. |
Find the value of 99% of 1500 +45% of 360 + 55.99% of 3600. |
| Answer» Correct Answer - `3662.64` | |
| 58. |
Anil bought certain number of books at the rate of 12 books for Rs 18 and sold them at the rate of 18 books for Rs 30.Find his profit `//`loss percentageA. `9.(1)/(1)%`B. `10%`C. `11.(1)/(9)%`D. `12.(1)/(2)%` |
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Answer» Correct Answer - C while caculating the profit `//` loss percentage we must consider equal number of books beings bought and sold. The cost price of each book `=Rs (18)/(12)=Rs .(3)/(2)` The selling price of each book `= Rs (30)/(18) =Rs .(5)/(3)` As `(3)/(2) lt (5)/(3) ` a profit is made Profit `% = ((5)/(2)-(3)/((2)/(3)x) xx (100%)` `=((1)/(6))/((3)/(2))xx (100%) =11.(1)/(9)%` |
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| 59. |
What percent of 3.6 km is 360 metres ? |
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Answer» We know that 1 km=1000 meters `rArr 3.6 `km=3.6 `xx 1000=3600` meters `:. `The required percentage `=((360)/(3600) xx 100) % =10%` |
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| 60. |
In an office 60% of the employees are female 30% of the female employees have children and 20% of the men employees have children.what percentage of employees have children. Choose the correct answer from the following options.A. `28%`B. `26%`C. `30%`D. `32%` |
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Answer» (i) Let the total number of employees in the office be 100 x (ii) Given the number of female employess as 60% of 100x Then male employees will be 40% of 100x (iii) Find the number of male employees and female employees who have children. (iv) Required percentage `=("Number of employees who have children")/("Total number of employees") xx 100` |
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| 61. |
If `2a =3b, b=(3)/(4) c` and c=0.8d then find by what percent is a less `//` more than d. |
| Answer» Correct Answer - `10% `less | |
| 62. |
This year the number of children in a colony is three times that of the previous year . What is the percentage increase in the number of children in the colony ? |
| Answer» Correct Answer - `200%` | |
| 63. |
If the cost price of five apples is equal to the selling price of 3 apples then find the profit percentage . |
| Answer» Correct Answer - `66.(2)/(3)%` | |
| 64. |
The profit made by a merchant in selling 5 m of a cloth was equal to the cost price of 2 m of the cloth. Find this profit percentage.A. `30%`B. `40%`C. `33.(1)/(3)%`D. `45%` |
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Answer» Correct Answer - B (i) Le CP of 1m cloth be Rs x (ii) Let the CP of the 5 m of a cloth be Rs 5x (iii) So profit = Rs 2x (iv) Now find the profit percentage |
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| 65. |
Ram and Lakshman started a business by investing Rs 30 Laks and Rs48 lakhs respectively. The ratio in which they share the profit is `"_____"` |
| Answer» Correct Answer - `5:8` | |
| 66. |
if 20% of a and 40% of b is 230 and 40% of a and 20% of b is 190 ,then b is what percentage more or less than a ?A. 0.8B. 0.6C. 0.5D. 0.4 |
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Answer» Correct Answer - A 20% a+ 40% b=230 40% a+20% b= 190. find a and b |
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| 67. |
The population of a city ijncreases by 20% at the end of every year. During which of the following years , the population would be doubled ?A. secondB. thirdC. fourthD. fifth |
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Answer» Correct Answer - C Use the formula `A=P (1+ (r )/(100))^(n)` |
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| 68. |
If Krishna and Balaram share profits in the ratio 3: 5 at the end of the year. Then the share of Krishna in the total investment of Rs 16,000 crores is Rs `"_____"` |
| Answer» Correct Answer - `Rs 6000 `crores | |
| 69. |
when calculated on selling price profit is found to be 25% find the actual profit percent. |
| Answer» Correct Answer - `33.(1)/(3)%` | |
| 70. |
50% of 50% of 50% iof 10 % of 560 is `"_____"` |
| Answer» Correct Answer - `7` | |
| 71. |
The profit made in selling 25m of a cloth equals the selling price of 5m of that cloth. Find the profit percentageA. `25%`B. `20%`C. `33.(1)/(3)%`D. `15%` |
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Answer» Correct Answer - A (i) let SP of 1 m of cloth be Rs. X (ii) Let SP of 25 m of a cloth be Rs 25x. ` :. " profit " = Rs 5x` (iii) Now find the CP and then the profit % |
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| 72. |
An increase in the side of a sauare by 20 % results in `"_____"`% increase in its area. |
| Answer» Correct Answer - `44%` | |
| 73. |
When the selling price is Rs 80 there is a loss of 20% .Find the selling price to earn 40% profit . |
| Answer» Correct Answer - Rs 140 | |
| 74. |
An electric room heater is sold at $880 after a reduction of 12% in its price .What was the original price in dollars before the reduction ? |
| Answer» Correct Answer - `1000` | |
| 75. |
A person sells `33.(1)/(3) %` of his property at 20% loss .At what profit per cent should he sell the remaining property to earn 20% profit on the whole? |
| Answer» Correct Answer - `x=40%` | |
| 76. |
A trader claims to sell his goods at cost price. But, he gives only 900 g for every kg. Find the profit percentage.A. `11.(1)/(9)%`B. `9.(1)/(11)%`C. `10%`D. `12.(2)/(3)%` |
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Answer» Correct Answer - A Let the cost price be Rs 10000x`//`kg. The selling price of 900 g= The cost price of 1000g `:. `The selling price of 900 g= Rs 1000 x the cost price of 900 g `=(900)/(1000) (Rs 1000x) =Rs 900x ` Profit in selling 900 g = Rs 100 x. Profit % = `(100 x)/(900x) (100%) =11.(1)/(9)%` |
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| 77. |
By selling an article at `(1)/(4)` of its actual selling price a trade incurs a loss of 50% . What will be the profit per cent if the trade sells the article at its actual selling price? |
| Answer» Correct Answer - `100%` | |
| 78. |
In a certain season the Indian cricket team had a 40% success rate in the first 80 matches it played. What is the minimum number of additional matches it must play so that it has a 60% success rate for the season ?A. 30B. 40C. 45D. 35 |
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Answer» Correct Answer - B (i) Find the number of matches won out of 80 matches. Minimum number of additonal matches is equal to the number of matches to be won. (ii) first find the number of matches won out of 80 matches played. That is `(40)/(100)xx 80=32` To get minimum number of matches to be played it has to win all the additional matches. (iv) Let the requred win all the additional matches. (iv) Let the required number of matches =x. `rArr ((32 +x))/((8+x)) xx 100 =60` |
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| 79. |
In a certain season the Indian cricket team had won 30% of the first 60 matches it had played Find the minimum possible number of additional matches it should play to achieve a success rate of 44% in that season.A. 20B. 15C. 25D. 30 |
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Answer» Correct Answer - B Let the number of matches played be 60+ x .This is minimum when x is minimum. As the target was achieved for the minimum value of x all the x matches must have been won. Let the minimum (x) =y `:. ` The total number of matches won `=(30)/(100) (60)+y =18 +y` ` (18+y)/(60+y) lt (100)% =44%` `1800+ 100y =2640+ 44y` 56y=840 y=15 |
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| 80. |
If the area of reatangle is increased by `13%` and its breadth is increased by `5%,` then what is the percentage increase in its length? (Approximately)A. `10%`B. `8%`C. `18%`D. `12%` |
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Answer» Correct Answer - B Let the length and breadth be 10x and 10y. |
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| 81. |
If `(0.15xx x)` is equal to `12.5%` of 3, then find x. |
| Answer» Correct Answer - `2.5` | |
| 82. |
In an election there were only two candidates A and B.A secured 60% valid votes more than B nad 9% of the total votes were invalid .What percentage of the total votes was in favour of A |
| Answer» Correct Answer - `56` | |
| 83. |
As per the information given in the above table approximately by what percentage is the total number of students in class A is less than those in class B?A. 0.09B. 0.1C. 0.11D. 0.13 |
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Answer» Correct Answer - C (i) find the total number of students in class A ans class B . (ii) Total number of students in class `A =((24)/(60)) xx 100.` (iii) Similarly find the total number of students in class B . (iv) Find the difference between the total number of students in both the sections and then find percentage difference with respect to the total number of students in class B. |
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| 84. |
What per cent of 1 litre is 200 ml |
| Answer» Correct Answer - `20%` | |
| 85. |
If `75%` of a number is 6, then what percentage of that number s 1 ? |
| Answer» Correct Answer - `12.5%` | |
| 86. |
x is what per cent of y ? |
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Answer» Let x =k% of y `x= (k)/(100) " of " y` `rArr k= (x)/(y) xx 100` |
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| 87. |
The enroment of members in a club increased from 500 to 550, Find the percentage increase in enorlment. |
| Answer» Correct Answer - `10%` | |
| 88. |
If `20%` of `30%` of a certain number is 3000, find the number.A. 40000B. 80000C. 50000D. 75000 |
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Answer» Correct Answer - C Let the number be x. `(0.2)(0.3)x=3000` `x=50000` |
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| 89. |
If `2%` of x is 20, then x= |
| Answer» Correct Answer - 1000 | |
| 90. |
If `x%` of 25 is equal to `y%` of 15 and `y%` of 15 is equal to `25%` of 20, then find the value of x. |
| Answer» Correct Answer - 20 | |
| 91. |
The price of an article is increased twice in succession, each by `10%.` The result is `"_____"%` increase. |
| Answer» Correct Answer - 21 | |
| 92. |
`x%` of y is equal to `y%` of x. |
| Answer» Correct Answer - 1 | |
| 93. |
If `((3)/(8)"of x")%is 3/4,` then find x. |
| Answer» Correct Answer - 200 | |
| 94. |
What per cent of 150 is 45?A. `20%`B. `30%`C. `60%`D. `13.5%` |
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Answer» Correct Answer - B `45/150xx100=30%` |
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| 95. |
Find `36 %` of 30 |
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Answer» `36% " of " 30= (36)/(100) xx 30 =10.8` `:. 36% ` of 30 is 10,8 |
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| 96. |
If my marks in maths are less than your markes in Maths by `20%` then your marks in Maths are `25%` more than my marks in Maths. (True/False) |
| Answer» Correct Answer - 1 | |
| 97. |
If `x% " of 25 is" 2, then x="____"` |
| Answer» Correct Answer - 8 | |
| 98. |
`20%of x+25% of 20=25of 40,"find x."` |
| Answer» Correct Answer - 25 | |
| 99. |
Express `64%` as a decimal. |
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Answer» `64% =(64)/(100) =0.64` `:. 64%` as a decimal is 0.64 |
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| 100. |
Express `3/20` as per cent. |
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Answer» `(3)/(20) =((3)/(20) xx 100) % =15%` `:. (3)/(20) ` as per cent is `15%` |
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