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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

The population of a town was 1,60,000 three years ago, If it increased by 3%, 2.5% and 5% respectively in the last three years, then the present population in 

A) 155679 B) 167890
C) 179890 D) 177366
 
Answer & Explanation Answer: D) 177366

Explanation:

Present population =  160000 *  (1 + 3/100)(1 + 5/200)(1 + 5/100)= 177366.

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Filed Under: Percentage

77 31890
Q:

What will come in place of the question mark in the series below?

7, 4.5, 5.5, 12, 49, ?

A) 393 B) 396
C) 354 D) 367
 
Answer & Explanation Answer: A) 393

Explanation:

Ans. 
4.5 = 7 x 0.5 + 1
5.5 = 4.5 x 1 + 1
12 = 5.5 x 2 + 1
49 = 12 x 4 + 1
? = 49 x 8 + 1, i.e. ? = 393

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Filed Under: Numbers
Exam Prep: AIEEE , Bank Exams , GATE

2 31862
Q:

In a race of 200 m, A can beat B by 31 m and C by 18 m. In a race of 350 m, C will beat B by:

A) 22.75 m B) 25 m
C) 19.5 m D) 18.5 m
 
Answer & Explanation Answer: B) 25 m

Explanation:

A : B = 200 : 169.

 

 

 

A : C = 200 : 182.

 

 

 

C/B = (C/A*A/B) = (182/200*200/169) = 182:169

 

 

 

When C covers 182 m, B covers 169 m.

 

 

 

When C covers 350 m, B covers (169/180*350)m  = 325 m

 

 

 

Therefore, C beats B by (350 - 325) m = 25 m.

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Filed Under: Races and Games

30 31827
Q:

When four fair dice are rolled simultaneously, in how many outcomes will at least one of the dice show 3?

A) 620 B) 671
C) 625 D) 567
 
Answer & Explanation Answer: B) 671

Explanation:

When 4 dice are rolled simultaneously, there will be a total of 6 x 6 x 6 x 6 = 1296 outcomes.

 

The number of outcomes in which none of the 4 dice show 3 will be 5 x 5 x 5 x 5 = 625 outcomes.

 

Therefore, the number of outcomes in which at least one die will show 3 = 1296 – 625 = 671

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Filed Under: Permutations and Combinations

48 31757
Q:

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

 

A) UQMI   B) SOKG  
C) MIEB   D) PLHD
 
Answer & Explanation Answer: C) MIEB  

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

1 31753
Q:

In the following question, select the odd word from the given alternatives.

 

A) Register B) Pen
C) Pencil D) Writer
 
Answer & Explanation Answer: D) Writer

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

0 31751
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 31732
Q:

A dog takes 3 leaps for every 5 leaps of a hare. If one leap of the dog is equal to 3 leaps of the hare, the ratio of the speed of the dog to that of the hare is :

A) 9:5 B) 2:3
C) 4:7 D) 5:6
 
Answer & Explanation Answer: A) 9:5

Explanation:

Dog : Hare = (3*3) leaps of hare : 5 leaps of hare = 9 : 5.

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Filed Under: Ratios and Proportions

115 31690