HackerRank Percentages Quiz- 1

Question 1

Time: 00:00:00
Samson’s salary is 36% that of Hardik’s and 54% that of Krunal. What percentage of Krunal’s salary is Hardik’s salary?

60%

60%

80%

80%

150%

150%

120%

120%

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Question 2

Time: 00:00:00
Time taken by a race car is increased by 30% and then reduced by 40% in consecutive laps . Find the overall change to the time

10% decrease

10% decrease

22% decrease

22% decrease

12% increase

12% increase

12% decrease

12% decrease

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Question 3

Time: 00:00:00
Virat Kholi made a profit of Rs 1.20 on Rs 200. Find the profit percentage made by Kholi

0.6%

0.6%

6%

6%

2.4%

2.4%

0.24%

0.24%

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Question 4

Time: 00:00:00
Warren Buffet spends 30% of his income on his kids' tuition fees, 15% on room rent, and half of the remaining on food and beverages. He spends some money on medicine. He saves Rs. 3250, which is 40% of the remaining amount after spending on the tuition fees, room rent, food and beverages.Find the amount spent on Medicine.

5825

5825

6250

6250

5555

5555

4875

4875

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Question 5

Time: 00:00:00
Elon Musk has written a scholarship exam which requires him to score 40% to be eligible for the scholarship. He could score only 142 marks and lost the scholarship by 26 marks. Find the maximum marks a candidate can score in the given scholarship exam

360

360

420

420

480

480

500

500

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Question 6

Time: 00:00:00
Amit and Modi want to be the school leader. So they both decided to enroll for the school election. Amit received 60% of the polled vote and Modi got 280 votes. Find the total number of polled votes

700

700

680

680

690

690

670

670

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Question 7

Time: 00:00:00
Ambani earns his living by selling milk. He sells 40L of milk everyday, which contains 20% of water.  Due to inflation, his living expenses increased. But he could not increase the quantity of milk he sold. So he decided to add 8 more liters of water to the milk he is selling. What is the percentage of milk in the new mixture?

50%

50%

72.82%

72.82%

66.67%

66.67%

76.17%

76.17%

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Question 8

Time: 00:00:00
25% of Sachini’s salary is the same as 70% of Virat’s salary. Then 30% of Virat’s salary will be same as ___

80.31%  of Sachin’s salary

80.31%  of Sachin’s salary

26.81%  of Sachin’s salary

26.81%  of Sachin’s salary

10.71%  of Sachin’s salary

10.71%  of Sachin’s salary

44.31%  of Sachin’s salary

44.31%  of Sachin’s salary

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Question 9

Time: 00:00:00
Usain Bolt has two children. A boy and a girl. 15% of the age of the  boy is equal to 21% of the age of  the girl. So, 24% of the age of boy will be what percent of the age of the girl?

33.6%

33.6%

36.2%

36.2%

29.6%

29.6%

30%

30%

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Question 10

Time: 00:00:00
Development of new technology increased the production of wheat in India. As a result, the price of wheat reduced by 15% in the last year. By what percentage will the consumption of wheat in Indian families increase such that their expenditure on wheat remains the same?

15%

15%

11.11%

11.11%

17.64%

17.64%

20%

20%

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