#### Percentage Question & Answers

Helpers are needed to prepare for the fete. Each helper can make either 2 large cakes or 35 small cakes per hour. The kitchen is available for 3 hours and 20 large cakes and 700 small cakes are needed. How many helpers are required?

A) 10 | B) 15 |

C) 20 | D) 25 |

Explanation:

20 large cakes will require the equivalent of 10 helpers working for one hour. 700 small cakes will require the equivalent of 20 helpers working for one hour. This means if only one hour were available we would need 30 helpers. But since three hours are available we can use 10 helpers.

Subject:
Percentage
- Quantitative Aptitude - Arithmetic Ability

Exam Prep:
GRE

##### If the length of a rectangle is increased by 10% and the area is unchanged , then its corresponding breadth must be decreased by?

Suppose length = 100m and breadth = x m

Area = 100 m

New length = 110m and breadth = (x-y% of x)

Then,

%

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Subject: Percentage - Quantitative Aptitude - Arithmetic Ability##### The tax on an article decreases by 10% and its consumption increases by 10%. Find the effect percent on its revenue?

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Subject: Percentage - Quantitative Aptitude - Arithmetic Ability##### From a salary of an officer, 10% is deducted as house rent, 15% of the rest he spend on children's education and 10% of the balance he spends on clothes. Then, he is left with Rs. 4131. Find his total salary?

Suppose his total salary be Rs.x, then

90% of 85% of 90% of x = 4131

Hence , the salary of the officer is Rs.6000

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Subject: Percentage - Quantitative Aptitude - Arithmetic Ability##### In an election, there were two candidates only. The candidate who got 62% of the total votes polled and was elected by a majority of 192 votes. The total number of votes polled was?

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Subject: Percentage - Quantitative Aptitude - Arithmetic Ability##### After spending 40% machinery, 25% in building , 15% in raw material and 5% on furniture . Harilal had a balance of Rs.1305. Total money with him was?

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Subject: Percentage - Quantitative Aptitude - Arithmetic Ability