Quantitative Aptitude - Arithmetic Ability Questions

Q:

If the product of two numbers is 4941 and their LCM is 81, then their HCF is :

A) 60 B) 59
C) 35 D) 61
 
Answer & Explanation Answer: D) 61

Explanation:
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Filed Under: HCF and LCM
Exam Prep: CAT , Bank Exams

4 2104
Q:

In each of the following questions two equations I and II are given. Solve both the equations and give answer:
I. x2+2x-195=0II. y2+30y+225=0

A) x = y or relation can’t be established between x and y B) x > y
C)  x < y D)  x ≥ y
 
Answer & Explanation Answer: D)  x ≥ y

Explanation:

 I. x2 + 2x - 195 = 0 = (x+15) (x-13) => x = -15, 13

II. y2 + 30y + 225 = 0 = (y+15) (y+15) => y = -15, -15

So x ≥ y

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Filed Under: Simplification

0 2103
Q:

What is the third proportional to 9 and 45?

A) 405 B) 225
C) 5 D) 81
 
Answer & Explanation Answer: B) 225

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

10 2103
Q:

The base of a parallelogram is twice its height. If the area of the parallelogram is 338 sq.cm. Find its height?

A) 13 cm B) 14 cm
C) 16 cm D) 12 cm
 
Answer & Explanation Answer: A) 13 cm

Explanation:
Let height =x Then, base =2x
2x * x = 338
=>x=13
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Filed Under: Area
Exam Prep: Bank Exams

0 2103
Q:

The area of the square field is 196 sq.m. Its each side is

A) 16 m B) 17 m
C) 14 m D) 13 m
 
Answer & Explanation Answer: C) 14 m

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Filed Under: Area
Exam Prep: Bank Exams

0 2103
Q:

Simple interest on a sum for 12 months at the rate of 25% per annum is Rs 935.What is the value (in Rs) of sum?

A) 3740 B) 3200
C) 4410 D) 4720
 
Answer & Explanation Answer: A) 3740

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Filed Under: Simple Interest
Exam Prep: Bank Exams , CAT

0 2103
Q:

A  field  can  be  reaped  by  12  men  or  18  women  in  14  days.  In  how  many  days  can  8  men  and  16 women reap it?

A) 26 days B) 24 days
C) 9 days D) 8 days
 
Answer & Explanation Answer: C) 9 days

Explanation:
12 men or 18 women can complete in 14 days
8 men and 16 women can complete in how many days
12men = 18 women (Comparing efficiencies)
1men = 18/12 = 1.5 women
8 men and 16 women = 12women + 16 women = 28 women
18 women completes in 14 days
1 woman completes in 14*18 days
28 women completes in (14*18)/28 days = 9 days
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Filed Under: Time and Work
Exam Prep: Bank Exams

0 2102
Q:

What is the length of the side of a regular hexagon, if its area is 54√3 sq cm?

A) 12 cm B) 9 cm
C) 6 cm D) 15 cm
 
Answer & Explanation Answer: C) 6 cm

Explanation:
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Filed Under: Area
Exam Prep: Bank Exams

1 2102