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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

Surbhi invested Rs.6000 for 5 months and Urba invested Rs.5000 for 6 months in a venture. The ratio in which they will share the profits is

A) 36:25 B) 6:5
C) 5:6 D) 1:1
 
Answer & Explanation Answer: D) 1:1

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Q:

If a saree is sold for Rs 2880 the seller will face 10% loss, at what price (in Rs) should he sell to gain 20% profit?

A) 4830 B) 3840
C) 3480 D) 4380
 
Answer & Explanation Answer: B) 3840

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Exam Prep: Bank Exams

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Q:

The mean height of 25 boys in a class is 150 cm, and the mean height of 35 girls in the same class is 145 cm. The combined mean height of 60 students in the class is ___ (app)

A) 146 B) 143
C) 147 D) 145
 
Answer & Explanation Answer: C) 147

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Q:

If y% of y is 289, then what is the value of y?

A) 149 B) 160
C) 170 D) 173
 
Answer & Explanation Answer: C) 170

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Filed Under: Percentage
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Q:

If the radius of a circle is increased by 17% its area increases by ______.

A) 34 percent B) 36.89 percent
C) 17 percent D) 18.445 percent
 
Answer & Explanation Answer: B) 36.89 percent

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Q:

If the price of pen decreases by 20%, then a man can buy 10 more pens for Rs 100. What is the new price (in Rs) of each pen?

A) 1 B) 2
C) 4 D) 5
 
Answer & Explanation Answer: B) 2

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Exam Prep: AIEEE , Bank Exams , CAT

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Q:

The simple interest on a sum for 20 years is 5/4 of the principal. What is the per annum rate (in percentage) of interest?

A) 6.25 B) 12.5
C) 2.5 D) 5
 
Answer & Explanation Answer: A) 6.25

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Q:

The ratio of volume of a cone to that of a cylinder if cylinder radius is reduced by 4 times and its height increased by 8 times of that of the cone, is - 

A) 3:2 B) 2:3
C) 5:7 D) 7:5
 
Answer & Explanation Answer: B) 2:3

Explanation:

Ans. Let radius of the base and height of the cone be ‘r’ & ‘h’ respectively.

Then volume of cone = πr2h/3 For cylinder, radius is reduced by 4 times = r/4 And,  height is increased by 8 folds = 8h Volume of cylinder = πR2H = π(r/4)2 (8h) = (16/8)πr2h = πr2h/2 Ratio of volume of cone to volume of cylinder = (πr2h/3) : (πr2h/2) Or, Ratio = 2 : 3.

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: AIEEE , Bank Exams , GATE

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