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Q:

A man rows his boat 60 km downstream and 30 km upstream taking 3 hrs each time. Find the speed of the stream ?

A) 5 kmph	B) 10 kmph
C) 15 kmph	D) 45 kmph

Answer & Explanation Answer: A) 5 kmph

Explanation:

Speed of the boat downstream s=a/t= 60/3 = 20 kmph

Speed of the boat upstream s= d/t = 30/3= 10 kmph

Therefore, The speed of the stream = $\frac{s p e e d o f d o w n s t r e a m - s p e e d o f u p s t r e a m}{2}$ =5 kmph

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Filed Under: Boats and Streams
Exam Prep: GATE
Job Role: Bank Clerk

Q:

Vishal is 24th from either end of the row of boys ? How many boys are there in the row ?

A) 48	B) 49
C) 46	D) 47

Answer & Explanation Answer: D) 47

Explanation:

Given that Vishal is 24th from either end of the row i.e from two sides

1 2 3 4 5 . . . . . .24 23 22 21 20 . . . . . 5 4 3 2 1

Here before Vishal there are 23 members and after Vishal there are 23 members

= 23+1+23 --> 47 members in the row.

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Filed Under: Number, Ranking and Time Sequence Test
Exam Prep: GATE
Job Role: Bank Clerk

Q:

What would be the next number in the series

9, 8, 18, 6, 36, 4, 72, 2, 144, ?

A) 288	B) 1
C) 0	D) 576

Answer & Explanation Answer: C) 0

Explanation:

Here there are combination of two series.

1) 9, 18, 36, 72, 144

2) 8, 6, 4, 2, 0

Therefore, The next number in the given series is 0.

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Filed Under: Verbal Reasoning - Mental Ability
Exam Prep: Bank Exams
Job Role: Bank Clerk

Q:

What value replaces " ? " in the below figure ?

k551483003228.jpg image

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

Answer & Explanation Answer: D) 1

Explanation:

Here it follows

$\frac{42}{6} - \frac{15}{3} = 2$ and $\frac{38}{19} - \frac{20}{10} = 0$

In the same way $\frac{39}{9} - \frac{9}{3} = 1$

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Filed Under: Inserting The Missing Character
Exam Prep: Bank Exams
Job Role: Bank Clerk

Q:

Veeru is the brother of the son of Raghu's son. Then what is the relationship of Veeru to Raghu ?

A) Grand son	B) Brother
C) Cousin	D) Nephew

Answer & Explanation Answer: A) Grand son

Explanation:

k441483001425.jpg image

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Filed Under: Blood Relations
Exam Prep: CAT
Job Role: Analyst

Q:

Arun is father of 'B' but 'B' is not son of Arun then what is the relationship of 'B' to Arun ?

A) Mother	B) Grand son
C) Daughter	D) Grand daughter

Answer & Explanation Answer: C) Daughter

Explanation:

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Filed Under: Blood Relations
Exam Prep: CAT
Job Role: Bank Clerk

Q:

Mr. Karthik drives to work at an average speed of 48 km/hr. Time taken to cover the first 60% of the distance is 20 minutes more than the time taken to cover the remaining distance. Then how far is his office ?

A) 40 km	B) 50 km
C) 70 km	D) 80 km

Answer & Explanation Answer: D) 80 km

Explanation:

Let the total distance be 'x' km.

Time taken to cover remaining 40% of x distance is $t 1 = \frac{40 \times x}{100 \times 48}$

But given time taken to cover first 60% of x distance is $t 2 = t 1 + \frac{20}{60} h r s$

$t 2 = \frac{60 \times x}{100 \times 48}$

$∴ \frac{60 \times x}{100 \times 48} = \frac{40 \times x}{100 \times 48} + \frac{20}{60}$

x=80 km.

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Filed Under: Time and Distance
Exam Prep: CAT
Job Role: Bank PO

Q:

Conditions:

I is brother of J

K is father of I

L is brother of M

M is daughter of J , then

Who is I to L?

A) Grand father	B) Uncle
C) Son	D) Brother

Answer & Explanation Answer: B) Uncle

Explanation:

k331482992185.jpg image

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Filed Under: Blood Relations
Exam Prep: GATE
Job Role: Network Engineer

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