Exams Questions and Answers

Q:

Find the ratio of the areas of the incircle and circumcircle of a square ?

A) 1 : 4	B) 4 : 1
C) 2 : 1	D) 1 : 2

Answer & Explanation Answer: D) 1 : 2

Explanation:

Let the side of the square be x. Then, its diagonal = $\sqrt{2} x$ .

Radius of incircle = x/2 and radius of circumcircle = $\frac{\sqrt{2} x}{2}$ . k11482389216.png image

Therefore, required ratio = $(\frac{{πx}^{2}}{4} : \frac{{πx}^{2}}{2})$ = $\frac{1}{4} : \frac{1}{2} = 1 : 2$

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Filed Under: Area
Exam Prep: CAT
Job Role: Bank Clerk

22 14803

Q:

Four pairs of words are given. Find the odd one out.

A) 5th June : World Environment Day	B) 22nd April : Earth Day
C) 22nd March : World Water Day	D) 22nd May : World Sparrow Day

Answer & Explanation Answer: D) 22nd May : World Sparrow Day

Explanation:

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Filed Under: Important Days and Years
Exam Prep: Bank Exams

1 14797

Q:

If the total number of bikes sold in 2009 was 50000, then by what number was the sales of white bikes less than that of yellow and red bikes put together?

A) 3000	B) 10000
C) 2500	D) 5000

Answer & Explanation Answer: C) 2500

Explanation:

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Filed Under: Bar Charts
Exam Prep: Bank Exams

0 14797

Q:

Is B2+ Paramagnetic or Diamagnetic?

Answer

B2+ is a Paramagnetic.

The filled orbitals are $σ$ (1s) $^{2}$ , $σ^{*}$ (1s) $^{2}$ , $σ$ (2s) $^{2}$ , $σ^{*}$ (2s) $^{2}$ . The half-filled orbitals are $π$ (2p $_{x}$ ) and $π$ (2p $_{y}$ ). Since it posses 2 unpaired electrons, it is Paramagnetic in nature.

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Subject: Physics Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

8 14780

Q:

Two pipes A and B can fill a cistern in 4 minutes and 6 minutes respectively . If these pipes are turned on alternately for 1 minute each how long will it take to the cistern to fill?

Answer

As the pipes are operating alternatively, thus their 2 minutes job is = $\frac{1}{4} + \frac{1}{6} = \frac{5}{12}$

In the next 2 minutes the pipes can fill another $\frac{5}{12}$ part of cistern.

Therefore, In 4 minutes the two pipes which are operating alternatively will fill $\frac{5}{12} + \frac{5}{12} = \frac{5}{6}$ Remaining part = $1 - \frac{5}{6} = \frac{1}{6}$

Pipe A can fill $\frac{1}{4}$ of the cistern in 1 minute

Pipe A can fill $\frac{1}{6}$ of the cistern in = $\frac{2}{3}$ min

Therefore, Total time taken to fill the Cistern

4 + $\frac{2}{3}$ minutes.

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Subject: Time and Work Exam Prep: CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk

28 14767

Q:

12 men complete a work in 9 days. After they have worked for 6 days, 4 more men join them. How many days will they take to complete the remaining work ?

A) 2 days	B) 2.5 days
C) 2.25 days	D) 3 days

Answer & Explanation Answer: C) 2.25 days

Explanation:

1 man's 1 day work = 1/108
12 men's 6 day's work = 1/9 x 6 = 2/3

Remaining work = 1 - 2/3 = 1/3

16 men's 1 day work = 1/108 x 16 = 4/27
4/27 work is done by them in 1 day.

1/3 work is done by them in 27/4 x 1/3 = 9/4 days.

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Filed Under: Time and Work
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18 14750

Q:

In a class of 50 students M is eighth from top. H is 20th from bottom. How many students are there between M and H?

A) 22	B) 23
C) 24	D) can't be determined

Answer & Explanation Answer: A) 22

Explanation:

M is 8th from the top.

H is (50 - 20 + 1 =) 31 st from the top.

Number of students between M and H = (31 - 8- 1=)22

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Filed Under: Number, Ranking and Time Sequence Test
Exam Prep: AIEEE , Bank Exams , CAT
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43 14730

Q:

Who was the first Indian ruler who had territory outside India ?

A) Kanishka	B) Chandra Guptha Maurya
C) Huvishka	D) Ashoka

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