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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

If two times of the daughter’s age in years is included to the mother’s age, the total is 70 and if two times of the mother’s age is included to the daughter’s age, the total is 95. So the Mother’s age is,

A) 30 B) 38
C) 40 D) 41
 
Answer & Explanation Answer: C) 40

Explanation:

Let daughter’s age = A and mother’s age = B
Given: 2A+B = 70 and A+2B = 95
Solving B, we will get B = 40.

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Filed Under: Problems on Ages

42 13883
Q:

A sum of Rs. 427 is to be divided among A, B and C in such a way that 3 times A’s share, 4 times B’s share and 7 times C’s share are all equal. The share of C is ?

A) 64 B) 76
C) 84 D) 98
 
Answer & Explanation Answer: C) 84

Explanation:

Given total sum = Rs. 427
And given that 3 times A’s share, 4 times B’s share and 7 times C’s share are all equal.
=> 3A = 4B = 7C
But given
=> A + B + C = 427
Now express A and B in terms of C i.e
=> (7C/3) + (7C/4) + C = 427
=> C = 84

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Filed Under: Partnership
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
Job Role: Bank Clerk , Bank PO

13 13872
Q:

LCM of 80, 85, 90

A) 11440 B) 11998
C) 12240 D) 12880
 
Answer & Explanation Answer: C) 12240

Explanation:

LCM of (80, 85, 90) can be found by prime factorizing them.

 

80 → 2 × 2 × 2 × 2 × 5

85 → 17 × 5

90 → 2 × 3 × 3 × 5

L.C.M of (80,85,90) = 2 × 2 x 2 × 2 × 3 × 3 × 5 × 17

= 16 x 9 x 85

= 144 x 85

= 12240

 

L.C.M of (80,85,90) = 12240.

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Filed Under: HCF and LCM
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO , Database Administration , IT Trainer

97 13871
Q:

Select the odd figure out of the following figure series?

 

A) d B) b
C) c D) a
 
Answer & Explanation Answer: A) d

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

1 13866
Q:

A sector of 120 degrees, cut out from a circle, has an area of 66/7 sq cm. Find the radius of the circle.

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

Explanation:

πr=667

 r =3

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

13 13863
Q:

Select the figure that does not belong in the following group.

 

 

A) D B) A
C) C D) B
 
Answer & Explanation Answer: C) C

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

0 13861
Q:

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

 

A) Kharif – Maize B) Rabi – Mustard
C) Barley – Rabi D) Kharif – Soybean
 
Answer & Explanation Answer: C) Barley – Rabi

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

0 13860
Q:

The ratio of students in a coaching preparing for B.tech and MBA is 4 : 5. The ratio of fees collected from each of B.tech and MBA students is 25 : 16. If the total amount collected from all the students is 1.62 lakh, what is the total amount collected from omly MBA aspirants?

A) Rs. 62,000 B) Rs. 72,000
C) Rs. 82,000 D) None of these
 
Answer & Explanation Answer: B) Rs. 72,000

Explanation:

The ratio of fees collected from B.Tech : MBA = 4x * 25y : 5x * 16y 

                                                                  = 100xy : 80xy 

                                                                  = 5xy : 4 xy  = 5k : 4k

 

The amount collected only from MBA students = 49×1.62 lakh = Rs. 72,000

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Filed Under: Ratios and Proportions

18 13860