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by Jimit
Fri Mar 09, 2018 5:35 pm
Forum: Ask Admission Consultants
Topic: A person borrows Rs. 5000 for 2 years at 4% p.a. simple interest. He immediately lends it to another person at 6p.a for
Replies: 0
Views: 1234

A person borrows Rs. 5000 for 2 years at 4% p.a. simple interest. He immediately lends it to another person at 6p.a for

Explanation:

Gain in 2 years
= Rs. 5000 x 25 x 2 - 5000 x 4 x 2
4 100 100
= Rs. (625 - 400)
= Rs. 225.
Gain in 1 year = Rs. 225 = Rs. 112.50
by Jimit
Fri Mar 09, 2018 5:35 pm
Forum: Ask Admission Consultants
Topic: A person borrows Rs. 5000 for 2 years at 4% p.a. simple interest. He immediately lends it to another person at 6p.a for
Replies: 0
Views: 1282

A person borrows Rs. 5000 for 2 years at 4% p.a. simple interest. He immediately lends it to another person at 6p.a for

Explanation:

Gain in 2 years
= Rs. 5000 x 25 x 2 - 5000 x 4 x 2
4 100 100
= Rs. (625 - 400)
= Rs. 225.
Gain in 1 year = Rs. 225 = Rs. 112.50
by Jimit
Fri Mar 09, 2018 5:04 pm
Forum: Career Forum
Topic: A jogger running at 9 kmph alongside a railway track in 240 metres ahead of the engine of a 120 metres long train runnin
Replies: 0
Views: 1061

A jogger running at 9 kmph alongside a railway track in 240 metres ahead of the engine of a 120 metres long train runnin

Explanation:

Speed of train relative to jogger = (45 - 9) km/hr = 36 km/hr.

= 36 x 5 m/sec
18
= 10 m/sec.

Distance to be covered = (240 + 120) m = 360 m.

Time taken = 360 sec = 36 sec.
by Jimit
Fri Mar 09, 2018 5:03 pm
Forum: Career Forum
Topic: A jogger running at 9 kmph alongside a railway track in 240 metres ahead of the engine of a 120 metres long train runnin
Replies: 0
Views: 1158

A jogger running at 9 kmph alongside a railway track in 240 metres ahead of the engine of a 120 metres long train runnin

Explanation:

Speed of train relative to jogger = (45 - 9) km/hr = 36 km/hr.

= 36 x 5 m/sec
18
= 10 m/sec.

Distance to be covered = (240 + 120) m = 360 m.

Time taken = 360 sec = 36 sec.
by Jimit
Fri Mar 09, 2018 4:50 pm
Forum: Share MANTRA Experience
Topic: The length of the bridge, which a train 130 metres long and travelling at 45 km/hr can cross in 30 seconds, is
Replies: 0
Views: 1152

The length of the bridge, which a train 130 metres long and travelling at 45 km/hr can cross in 30 seconds, is

:roll: :roll: Speed = 45 x 5 m/sec = 25 m/sec.
18 2
Time = 30 sec.

Let the length of bridge be x metres.

Then, 130 + x = 25
30 2
2(130 + x) = 750

x = 245 m
by Jimit
Fri Mar 09, 2018 4:47 pm
Forum: Reading Comprehension
Topic: A train 125 m long passes a man, running at 5 km/hr in the same direction in which the train is going, in 10 seconds. Th
Replies: 0
Views: 1510

A train 125 m long passes a man, running at 5 km/hr in the same direction in which the train is going, in 10 seconds. Th

Explanation:

Speed of the train relative to man = 125 m/sec
10
= 25 m/sec.
2
= 25 x 18 km/hr
2 5
= 45 km/hr.

Let the speed of the train be x km/hr. Then, relative speed = (x - 5) km/hr.

x - 5 = 45 x = 50 km/hr.
by Jimit
Fri Mar 09, 2018 4:41 pm
Forum: Data Sufficiency
Topic: Two numbers A and B are such that the sum of 5% of A and 4% of B is two-third of the sum of 6% of A and 8% of B. Find th
Replies: 0
Views: 1237

Two numbers A and B are such that the sum of 5% of A and 4% of B is two-third of the sum of 6% of A and 8% of B. Find th

Explanation:

5% of A + 4% of B = 2 (6% of A + 8% of B)
3
5 A + 4 B = 2 6 A + 8 B
100 100 3 100 100
1 A + 1 B = 1 A + 4 B
20 25 25 75
1 - 1 A = 4 - 1 B
20 25 75 25
1 A = 1 B
100 75
A = 100 = 4 .
B 75 3
Required ratio = 4 : 3
by Jimit
Fri Mar 09, 2018 4:40 pm
Forum: Data Sufficiency
Topic: Two numbers A and B are such that the sum of 5% of A and 4% of B is two-third of the sum of 6% of A and 8% of B. Find th
Replies: 0
Views: 1244

Two numbers A and B are such that the sum of 5% of A and 4% of B is two-third of the sum of 6% of A and 8% of B. Find th

Explanation:

5% of A + 4% of B = 2 (6% of A + 8% of B)
3
5 A + 4 B = 2 6 A + 8 B
100 100 3 100 100
1 A + 1 B = 1 A + 4 B
20 25 25 75
1 - 1 A = 4 - 1 B
20 25 75 25
1 A = 1 B
100 75
A = 100 = 4 .
B 75 3
Required ratio = 4 : 3
by Jimit
Fri Mar 09, 2018 4:37 pm
Forum: General Questions and Strategies
Topic: If 20% of a = b, then b% of 20 is the same as:
Replies: 0
Views: 1195

If 20% of a = b, then b% of 20 is the same as:

Explanation:

20% of a = b 20 a = b.
100
b% of 20 = b x 20 = 20 a x 1 x 20 = 4 a = 4% of a.