6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If a number 657423547X46 is divisible by 11, then find the value of X.

A) 7	B) 9
C) 8	D) 6

Answer & Explanation Answer: B) 9

Explanation:

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Filed Under: Problems on Numbers
Exam Prep: Bank Exams

1 25307

Q:

Find the unit place digit in the expression given below:

1! + 2! + 3! + 4! + ..... + 20!

A) 5	B) 0
C) 3	D) 9

Answer & Explanation Answer: C) 3

Explanation:

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Filed Under: Problems on Numbers
Exam Prep: Bank Exams

2 25295

Q:

The difference of two numbers is 14. Their LCM and HCF are 441 and 7. Find the two numbers ?

A) 63 and 49	B) 64 and 48
C) 62 and 46	D) 64 and 49

Answer & Explanation Answer: A) 63 and 49

Explanation:

Since their HCFs are 7, numbers are divisible by 7 and are of the form 7x and 7y

Difference = 14
=> 7x - 7y = 14
=> x - y = 2

product of numbers = product of their hcf and lcm
=> 7x * 7y = 441 * 7
=> x * y = 63

Now, we have
x * y = 63 , x - y = 2
=> x = 9 , y = 7

The numbers are 7x and 7y
=> 63 and 49

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Filed Under: HCF and LCM
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Bank Clerk , Bank PO

25 25290

Q:

In 16 minutes, the minute hand gains over the hour hand by -

A) 16 deg	B) 80 deg
C) 88 deg	D) 94 deg

Answer & Explanation Answer: C) 88 deg

Explanation:

In one hour, the minute hand gains 330° over the hour hand. i.e., 60 minute, the minute hand gains 330° over the hour hand.

∴ In 16 minutes, the minute hand gain over the hour hand by $fraction numerator 330 degree over denominator 60 end fraction cross times 16 degree equals 88 degree$

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Filed Under: Clocks
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

38 25287

Q:

The volume of a wall, 5 times as high as it is broad and 8 times as long as it is high, is 12.8 cu. meters. Find the breadth of the wall.

A) 40cm	B) 30cm
C) 20cm	D) 10cm

Answer & Explanation Answer: A) 40cm

Explanation:

Let the breadth of the wall be x metres.

Then, Height = 5x metres and Length = 40x metres.

x * 5x * 40x = 12.8

=> $x^{3} = 12.8 / 200 = 128 / 2000 = 64 / 1000$

=> x = 4/10 m

=> x = (4/10)*100 = 40 cm

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Filed Under: Volume and Surface Area

52 25276

Q:

The area of an equilateral triangle is 49√3 cm2. Find its side (in cm).

A) 7	B) 14
C) 28	D) 42

Answer & Explanation Answer: B) 14

Explanation:

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Filed Under: Area
Exam Prep: Bank Exams

0 25252

Q:

Anand and Deepak started a business investing Rs. 22,500 and Rs. 35,000 respectively. Out of a total profit of Rs. 13,800, Deepak's share is :

A) 8400	B) 8200
C) 8100	D) 8000

Answer & Explanation Answer: A) 8400

Explanation:

Ratio of their shares = 22500 : 35000 = 9 : 14.

Deepak's share = Rs. (13800 * 14/23) = Rs. 8400.

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Filed Under: Partnership

35 25229

Q:

The tangent at any point of the circle is _________________ to the radius through the point of contact.

A) parallel	B) intersecting
C) perpendicular	D) equal

Quantitative Aptitude - Arithmetic Ability Questions

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