Aptitude Archives - Page 59 of 80 -

The calendar for the year 2007 will be the same for the year:

Aptitude, Calendar / admin

Question:
The calendar for the year 2007 will be the same for the year:

[A].

2014

[B].

2016

[C].

2017

[D].

2018

Answer: Option D

Explanation:

Count the number of odd days from the year 2007 onwards to get the sum equal to 0 odd day.

Year : 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017
Odd day : 1 2 1 1 1 2 1 1 1 2 1

Sum = 14 odd days 0 odd days.

Calendar for the year 2018 will be the same as for the year 2007.

The calendar for the year 2007 will be the same for the year: Read More »

Aptitude, Calendar

If 6th March, 2005 is Monday, what was the day of the week on 6th March, 2004?

Aptitude, Calendar / admin

Question: If 6th March, 2005 is Monday, what was the day of the week on 6th March, 2004?
[A].

Sunday

[B].

Saturday

[C].

Tuesday

[D].

Wednesday

Answer: Option A

Explanation:

The year 2004 is a leap year. So, it has 2 odd days.

But, Feb 2004 not included because we are calculating from March 2004 to March 2005. So it has 1 odd day only.

The day on 6th March, 2005 will be 1 day beyond the day on 6th March, 2004.

Given that, 6th March, 2005 is Monday.

6th March, 2004 is Sunday (1 day before to 6th March, 2005).

If 6th March, 2005 is Monday, what was the day of the week on 6th March, 2004? Read More »

Aptitude, Calendar

On 8th Dec, 2007 Saturday falls. What day of the week was it on 8th Dec, 2006?

Aptitude, Calendar / admin

Question:
On 8th Dec, 2007 Saturday falls. What day of the week was it on 8th Dec, 2006?

[A].

Sunday

[B].

Thursday

[C].

Tuesday

[D].

Friday

Answer: Option D

Explanation:

The year 2006 is an ordinary year. So, it has 1 odd day.

So, the day on 8th Dec, 2007 will be 1 day beyond the day on 8th Dec, 2006.

But, 8th Dec, 2007 is Saturday.

8th Dec, 2006 is Friday.

On 8th Dec, 2007 Saturday falls. What day of the week was it on 8th Dec, 2006? Read More »

Aptitude, Calendar

January 1, 2008 is Tuesday. What day of the week lies on Jan 1, 2009?

Aptitude, Calendar / admin

Question:
January 1, 2008 is Tuesday. What day of the week lies on Jan 1, 2009?

[A].

Monday

[B].

Wednesday

[C].

Thursday

[D].

Sunday

Answer: Option C

Explanation:

The year 2008 is a leap year. So, it has 2 odd days.

1st day of the year 2008 is Tuesday (Given)

So, 1st day of the year 2009 is 2 days beyond Tuesday.

Hence, it will be Thursday.

January 1, 2008 is Tuesday. What day of the week lies on Jan 1, 2009? Read More »

Aptitude, Calendar

January 1, 2007 was Monday. What day of the week lies on Jan. 1, 2008?

Aptitude, Calendar / admin

Question:
January 1, 2007 was Monday. What day of the week lies on Jan. 1, 2008?

[A].

Monday

[B].

Tuesday

[C].

Wednesday

[D].

Sunday

Answer: Option B

Explanation:

The year 2007 is an ordinary year. So, it has 1 odd day.

1st day of the year 2007 was Monday.

1st day of the year 2008 will be 1 day beyond Monday.

Hence, it will be Tuesday.

January 1, 2007 was Monday. What day of the week lies on Jan. 1, 2008? Read More »

Aptitude, Calendar

A man rows to a place 48 km distant and come back in 14 hours. He finds that he can row 4 km with the stream in the same time as 3 km against the stream. The rate of the stream is:

Aptitude, Boats and Streams / admin

Question:
A man rows to a place 48 km distant and come back in 14 hours. He finds that he can row 4 km with the stream in the same time as 3 km against the stream. The rate of the stream is:

[A].

1 km/hr

[B].

1.5 km/hr

[C].

2 km/hr

[D].

2.5 km/hr

Answer: Option A

Explanation:

Suppose he move 4 km downstream in x hours. Then,

Speed downstream =		4		km/hr.
		x

Speed upstream =		3		km/hr.
		x

	48	+	48	= 14 or x =	1	.
	(4/x)		(3/x)		2

So, Speed downstream = 8 km/hr, Speed upstream = 6 km/hr.

Rate of the stream =	1	(8 – 6) km/hr = 1 km/hr.
	2

A man rows to a place 48 km distant and come back in 14 hours. He finds that he can row 4 km with the stream in the same time as 3 km against the stream. The rate of the stream is: Read More »

Aptitude, Boats and Streams

A boat takes 90 minutes less to travel 36 miles downstream than to travel the same distance upstream. If the speed of the boat in still water is 10 mph, the speed of the stream is:

Aptitude, Boats and Streams / admin

Question: A boat takes 90 minutes less to travel 36 miles downstream than to travel the same distance upstream. If the speed of the boat in still water is 10 mph, the speed of the stream is:
[A].

2 mph

[B].

2.5 mph

[C].

3 mph

[D].

4 mph

Answer: Option A

Explanation:

Let the speed of the stream x mph. Then,

Speed downstream = (10 + x) mph,

Speed upstream = (10 – x) mph.

	36	–	36	=	90
	(10 – x)		(10 + x)		60

72x x 60 = 90 (100 – x2)

x2 + 48x – 100 = 0

(x+ 50)(x – 2) = 0

x = 2 mph.

A boat takes 90 minutes less to travel 36 miles downstream than to travel the same distance upstream. If the speed of the boat in still water is 10 mph, the speed of the stream is: Read More »

Aptitude, Boats and Streams

A motorboat, whose speed in 15 km/hr in still water goes 30 km downstream and comes back in a total of 4 hours 30 minutes. The speed of the stream (in km/hr) is:

Aptitude, Boats and Streams / admin

Question: A motorboat, whose speed in 15 km/hr in still water goes 30 km downstream and comes back in a total of 4 hours 30 minutes. The speed of the stream (in km/hr) is:
[A].

[B].

[C].

[D].

Answer: Option B

Explanation:

Let the speed of the stream be x km/hr. Then,

Speed downstream = (15 + x) km/hr,

Speed upstream = (15 – x) km/hr.

	30	+	30	= 4	1
	(15 + x)		(15 – x)		2

	900	=	9
	225 – x2		2

9×2 = 225

x2 = 25

x = 5 km/hr.

Video Explanation: https://youtu.be/lMFnNB3YQOo

A motorboat, whose speed in 15 km/hr in still water goes 30 km downstream and comes back in a total of 4 hours 30 minutes. The speed of the stream (in km/hr) is: Read More »

Aptitude, Boats and Streams

A boat covers a certain distance downstream in 1 hour, while it comes back in 1 hours. If the speed of the stream be 3 kmph, what is the speed of the boat in still water?

Aptitude, Boats and Streams / admin

Question:
A boat covers a certain distance downstream in 1 hour, while it comes back in 1 hours. If the speed of the stream be 3 kmph, what is the speed of the boat in still water?

[A].

12 kmph

[B].

13 kmph

[C].

14 kmph

[D].

15 kmph

Answer: Option D

Explanation:

Let the speed of the boat in still water be x kmph. Then,

Speed downstream = (x + 3) kmph,

Speed upstream = (x – 3) kmph.

(x + 3) x 1 = (x – 3) x	3
	2

2x + 6 = 3x – 9

x = 15 kmph.

A boat covers a certain distance downstream in 1 hour, while it comes back in 1 hours. If the speed of the stream be 3 kmph, what is the speed of the boat in still water? Read More »

Aptitude, Boats and Streams

A man can row at 5 kmph in still water. If the velocity of current is 1 kmph and it takes him 1 hour to row to a place and come back, how far is the place?

Aptitude, Boats and Streams / admin

Question:
A man can row at 5 kmph in still water. If the velocity of current is 1 kmph and it takes him 1 hour to row to a place and come back, how far is the place?

[A].

2.4 km

[B].

2.5 km

[C].

3 km

[D].

3.6 km

Answer: Option A

Explanation:

Speed downstream = (5 + 1) kmph = 6 kmph.

Speed upstream = (5 – 1) kmph = 4 kmph.

Let the required distance be x km.

Then,	x	+	x	= 1
	6		4

2x + 3x = 12

5x = 12

x = 2.4 km.

A man can row at 5 kmph in still water. If the velocity of current is 1 kmph and it takes him 1 hour to row to a place and come back, how far is the place? Read More »

Aptitude, Boats and Streams