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Q:

Sum of present ages of P and Q is 41. Age of P 2 year hence is equal to age of R, 1 year ago. Age of P, 4 year hence is equal to age of Q 1 year ago and ratio of present age of P and S is 3 : 4. Find the difference of age of R and S. 

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

Explanation:

According to the given data,

P + Q = 41 ......(1)

R - 1 = P + 2

R = P + 3

and

P + 4 = Q - 1

=> Q = P + 5 ....(2)

From (1)&(2)

P = 18

Q = 18 + 5 = 23

R = 18 + 3 = 21

=> P/S = 3/4

=> S = 4/3 x 18 = 24

Required Difference = S - R = 24 - 21 = 3.

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Filed Under: Problems on Ages
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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10 8681
Q:

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.


Under the weather

 

A) Become a bit unpredictable like the weather. B) Slightly unwell or in low spirits.
C)  Feel optimistic simply because the weather is good. D)  Feel depressed because you expect bad weather.
 
Answer & Explanation Answer: B) Slightly unwell or in low spirits.

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

52 8678
Q:

The first 8 alphabets are written down at random. what is the probability that the letters b,c,d,e always come together ?

A) 1/7 B) 8!
C) 7! D) 1/14
 
Answer & Explanation Answer: D) 1/14

Explanation:

The 8 letters can be written in 8! ways.
n(S) = 8!
Let E be the event that the letters b,c,d,e always come together when the first 8 alphabets are written down.
Now the letters a, (bcde), f, g and h can be arranged in 5! ways.
The letters b,c,d and e can be arranged themselves in 4! ways.
n(E) = 5! x 4!
Now, the required P(E) = n(E)/n(S) = 5! x 4!/8! = 1/14
Hence the answer is 1/14. 

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Filed Under: Probability
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15 8675
Q:

The first Satyagraha campaign of Gandhiji was started at -

A) Bardoli B) Dandi
C) Champaran D) Baroda
 
Answer & Explanation Answer: C) Champaran

Explanation:
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Filed Under: Indian History
Exam Prep: AIEEE , Bank Exams , CAT
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16 8673
Q:

In very cold countries alcohol is used as a thermometric liquid because 

A) alcohol is a poor conductor of heat B) alcohol can be coloured for its level to be seen easily
C) its freezing point is very low D) it will not stick to the glass tube
 
Answer & Explanation Answer: C) its freezing point is very low

Explanation:

Alcohol has a freezing point as low as -117oC. So it won't freeze even in very cold countries.

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Filed Under: Physics
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17 8673
Q:

A piece of paper is folded and cut as shown below in the question figures. From the given answer figures, indicate how it will appear when opened.

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

Explanation:
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Filed Under: Paper Folding
Exam Prep: Bank Exams

4 8668
Q:

When was Uttarakhand separated from Uttar pradesh to form new state ?

A) 1997 B) 1998
C) 1999 D) 2000
 
Answer & Explanation Answer: D) 2000

Explanation:
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Filed Under: Indian Geography
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23 8663
Q:

Which of the following pairs is mismatched? 

A) Hooke - cell theory B) van Leeuwenhoek - germ theory
C) Lister - aseptic surgery D) Jenner - vaccines
 
Answer & Explanation Answer: B) van Leeuwenhoek - germ theory

Explanation:
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Filed Under: Biology
Exam Prep: AIEEE , Bank Exams
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16 8660