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Q:

A man goes down stream with a boat to some destination and returns upstream to his original place in 5 hours. If the speed of the boat in still water and the strean are 10km/hr and 14km/hr respectively, the distance of the destination from the string place is

A) 16 km	B) 18 km
C) 21 km	D) 25 km

Answer & Explanation Answer: C) 21 km

Explanation:

Let the distance covered be D km.

$\frac{D}{10 + 4} + \frac{D}{10 - 4} = 5$

$\frac{D}{14} + \frac{D}{6} = 5$

10D = 42 x 5 = 210

=> D = 21 km

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Filed Under: Boats and Streams
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

Q:

A man takes 6 hours 15 minutes in walking a distance and riding back to the starting place. He could walk both ways in 7 hours 45 minutes. The time taken by him to ride both ways, is

A) 4 hours	B) 4 hours 30 minutes
C) 4 hours 45 minutes	D) 5 hours

Answer & Explanation Answer: C) 4 hours 45 minutes

Explanation:

Time taken in walking both ways = 7 hours 45 minutes --------(i)

Time taken in walking one way and riding back= 6 hours 15 minutes-------(ii)

By equation (ii)*2 -(i), we have

Time taken to man ride both ways, = 12 hours 30 minutes - 7 hours 45 minutes

= 4 hours 45 minutes

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Filed Under: Time and Distance

Q:

Two trains started at the same time, one from A to B and the other from B to A . If they arrived at B and A respectively 4 hours and 9 hours after they passed each other the ratio of the speeds of the two trains was

A) 2:1	B) 3:2
C) 4:3	D) 5:4

Answer & Explanation Answer: B) 3:2

Explanation:

Note : If two trains (or bodies) start at the same time from points A and B towards each other and after crossing they take a and b sec in reaching B and A respectively, then: (A's speed) : (B's speed) = (b : a)

Therefore, Ratio of the speeds of two trains = $\sqrt{9} : \sqrt{4}$ = 3 : 2

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Filed Under: Problems on Trains
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

Q:

Two trains of equal length , running in opposite directions , pass a pole in 18 and 12 seconds. The trains will cross each other in

A) 14.4 sec	B) 15.5 sec
C) 18.8 sec	D) 20.2 sec

Answer & Explanation Answer: A) 14.4 sec

Explanation:

Let the length of the train be L metres

Speed of first train = $\frac{3600}{18} x L$ m/hour

Speed of secxond train = $\frac{3600}{12} x L$ m/hour

When running in opposite directions, relative speed = 200 L + 300 L m/hour

Distance to be covered = L + L = 2L metre

Time taken = $\frac{2 L}{500 L} x 3600$ sec

=14.4 sec

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Filed Under: Problems on Trains
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

Q:

Ravi started walking from his house east direction on Bus stop which is 3km.away. Then he set off in the bus straight towards his right to the school 4 km away. what is the crow flight distance from his house to the school?

A) 1 km	B) 5 km
C) 7 km	D) 12 km

Answer & Explanation Answer: B) 5 km

Explanation:

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Filed Under: Direction Sense Test

Q:

Of the six members of a panel sitting in a row X is to left of Q but on the right of P. Y is in the right of Q but is on the left of Z, Z is to the left of R. Find the members who are at the extreme?

A) QZ	B) XZ
C) PR	D) QY

Answer & Explanation Answer: C) PR

Explanation:

According to given data the sitting order is P X Q Y Z R

So the members in the extreme position are P R

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Filed Under: Alphabet Test

Q:

As per a UNESCO report released in october 2013, how many internal migrants are there in India?

A) 200 million	B) 400 million
C) 600 million	D) 750 million

Answer & Explanation Answer: D) 750 million

Explanation:

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Filed Under: General Awareness

Q:

Name the continent where 'Tundra' type of climate is not found

A) Europe	B) Asia
C) Africa	D) North America

Answer & Explanation Answer: C) Africa

Explanation:

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Filed Under: General Awareness

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