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Arithmetic Aptitude :: Percentage

Home > Arithmetic Aptitude > Percentage > General Questions

81. A team won 80% of the games if played. If played 5 more games of which if won 3 and lost 2. Its loss percentage changed by 25%. How many games did it played overall?

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Answer: Option A

Explanation:

Game played = x
Then Lost Game = x/5
Now they played 5 more games in which they lost 2
so, (x+5)*25/100 = x/5 + 2
=> x=15
Total game played = 15+5 = 20

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82. On a certain island, 5% of the 10000 inhabitants are one-legged and half of the others go barefooted. What is the least number of Shoes needed in the island?

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Answer: Option A

Explanation:

One-legged = 5% of 10000 = 500
Remaining = (10000-500) = 9500
Barefooted = 9500/2 = 4750
Remaining people = 9500-4750 = 4750
Hence required number of shoes = 4750*2+500*1 = 10000

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83. In a class there are 60% of girls of which 25% poor. What is the probability that a poor girl is selected is leader?

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Answer: Option A

Explanation:

girls=60%
poor gilrs=25%60 ie 15%
so probability that a girl will be poor is 15%

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84. 35% of 30 = 25% of?+1

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Answer: Option B

Explanation:

35% of 30 = 25% of x + 1
35/100 * 30 = 25/100 * x + 1
7/20 * 30 = x/4 + 1
21/2 = x+4/4
21 = x+4/2
42=x+4
x = 38

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85. In a school the ratio of boys and girls are in the ration 5:6 .25% of boys will get scholar ship and 20% of girls will get scholar ship what % of students wont get scholarship?

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Answer: Option C

Explanation:

Boys : Girls => 5x : 6x
Total no. of students including boys nd girls = 5x+6x = 11x
25% of boys => 5x*25/100 = 5x/4
20% of girls => 6x*20/100 =6x/5
No. of students who are getting scholarship => 5x/4 + 6x/5 = 49x/20
No. of students who are not getting scholarship = 11x - 49x/20 = 171x/20
% of students not getting scolorship => 171x/20/11x * 100
=> 100*171x/220x
= 77.7% ~ 78%

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86. A man walked diagonally across a square lot approximately what was the percent saved by not walking along the edges?

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Answer: Option A

Explanation:

Here is no explanation for this answer

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87. In a primary school, 10% of students are below 11 years of age. The number of students above 11 years of age is 3/4 of the number of students of 11 years of age which is 36. What is the total number of students in the school?

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Answer: Option C

Explanation:

Here is no explanation for this answer

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88. In june a baseball team that played 60 games had won 30% of its game played. After a phenomenal winning streak this team raised its average to 50% .How many games must the team have won in a row to attain this average?

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Answer: Option C

Explanation:

Here is no explanation for this answer

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