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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

The ratio of bases of two triangles is x:y and that of their areas is a:b. Then the ratio of their corresponding altitudes wll be

A) ay:bx B) a:b
C) x:y D) bx:ay
 
Answer & Explanation Answer: A) ay:bx

Explanation:

a : b =(1/2 * x * H) : (1/2 * y * h) 

bxH = ayh        => H/h =ay/bx 

Hence H:h = ay:bx

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Filed Under: Area
Exam Prep: Bank Exams
Job Role: Bank PO

8 12330
Q:

How much pepsi at Rs.6 a litre is added to 15 litre of 'dew' at Rs. 10 a litre so that the price of the mixture be Rs.9 a litre?

A) 5 B) 8
C) 10 D) None of these
 
Answer & Explanation Answer: A) 5

Explanation:

Let x litre pepsi is required.

 

 

(10-9)=1           :                3=(9-6)

 

Therefore  in 1:3 one part = 5 

 

=>  x= 5 litres

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Filed Under: Alligation or Mixture

8 12315
Q:

In the following question, select the odd letter/letters from the given alternatives.

 

A) GHJM B) PQSV
C) MNPR D) STVY
 
Answer & Explanation Answer: C) MNPR

Explanation:
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Filed Under: Odd Man Out
Exam Prep: Bank Exams

1 12313
Q:

Select the odd figure out of the following series.

 

 

A) 3 B) 4
C) 2   D) 1
 
Answer & Explanation Answer: A) 3

Explanation:
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Filed Under: Odd Man Out
Exam Prep: Bank Exams

0 12307
Q:

In the following question, select the odd letter/letters from the given alternatives.

 

A) BDF B) LNP
C) TVX D)  JLP
 
Answer & Explanation Answer: D)  JLP

Explanation:
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Filed Under: Odd Man Out
Exam Prep: Bank Exams , GRE , TOEFL

0 12289
Q:

A has to pay Rs.220 to B after 1yr. B asks A to pay Rs.110 in cash and defer the payment of Rs.110 for 2 yrs. A agrees to it. If the rate of interest be 10% per annum in this mode of payment:

A) A gains Rs.11 B) There is No gain or loss
C) A losses 7.43 D) A gains Rs. 7.34
 
Answer & Explanation Answer: D) A gains Rs. 7.34

Explanation:

A has to pay = Present worth of Rs220 due 1yr hence  

= Rs.[(220 x 100)/100+(10 x 1)] = Rs.200 

 

A actually pays = Rs.110+PW  of Rs.110 due 2 yrs hence 

= [110+(110 x 100)] / [100+(10 x 2)] = Rs.192.66  

 

So, A gains Rs. (200-192.66) = Rs.7.34

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Filed Under: True Discount

6 12276
Q:

Select the figure which does NOT belong to the group.

 

 

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: A) 1

Explanation:
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Filed Under: Odd Man Out
Exam Prep: Bank Exams

0 12269
Q:

The price of commodity X increases by 40 paise every year, while the price of commodity Y increases  by 15 paise every year. If in 2001, the price of commodity X was Rs. 4.20 and that of Y was Rs. 6.30, in which year commodity X will cost 40 paise more than the commodity?

A) 2010 B) 2011
C) 2012 D) 2013
 
Answer & Explanation Answer: B) 2011

Explanation:

Suppose commodity X wil cost 40 paise more than Y after Z  years. Then,

        (4.20 + 0.40Z) - (6.30 + 0.15Z) = 0.40

=>  0.25Z = 0.40 + 2.10  => Z= 2.50/0.25 = 10

Therefore, X will cost 40 paise more than Y 10  years after 2001 . i.e in 2011

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Filed Under: Decimal Fractions

9 12253