Aptitude - Races and Games - Discussion

Discussion Forum : Races and Games - General Questions (Q.No. 10)
10.
A can run 22.5 m while B runs 25 m. In a kilometre race B beats A by:
100 m
111 1 m
9
25 m
50 m
Answer: Option
Explanation:

When B runs 25 m, A runs 45 m.
2

When B runs 1000 m, A runs 45 x 1 x 1000 m = 900 m.
2 25

B beats A by 100 m.

Discussion:
20 comments Page 1 of 2.

James said:   3 years ago
Tell me, if this is correct or not.

The ratio of A: B is 22.5:25.
But the question says if b covers 1000 m what distance the A will cover.
So, 25=1000.
22.5=x.

Cross multiply.
X=1000*22.5/25,
= 900.

So, the difference is 1000-9000.
= 100m.
(1)

Niki L sanchu said:   3 years ago
@All.

Please learn to solve problems without using formula then you can remember for a long time.
time is taken by a = 1000/25,
= 40.

40 quantity of time he took to reach destiny in same time how much B have reached?
B distance = 22.5*4 = 900.
Finally distance is a-b = 1000-900 = 100.

M GANESH KUMAR said:   4 years ago
It means that A has won the race.
Relative difference =25-22.5=2.5
Thus for 25m---------->2.5
Then for 1000m------------>?
1000*2.5/25 = 100.
(3)

Kiran said:   6 years ago
Thanks @Ravi.

It's very simple calculation.

Namrata said:   6 years ago
Thanks @Anand.
(1)

Sindhu said:   6 years ago
This is very simple.

A wins 40 times by B (1000/25) in a 1km race.
In each session B lack by 2.5 i.e, (25-22.5).
So totally in a km race, B lack by A is:2.5*40 that is 100.
(1)

Pranay said:   7 years ago
A runs = 22.5m.
B runs = 25m.
B beats A = 25/22.5 = 10/9.
Then, in kilometers race B beat A.
=(9/10)*1000 = 900m.
Hence,1000-900= 100m.

Sana shaikh said:   8 years ago
Can anyone explain how they are calculating with 1/25 or 45/2? I so confuse.

Sana shaikh said:   8 years ago
I understand it clearly.

Ravi: said:   9 years ago
If 25---->2.5.

1000......> (?).

(1000/25)*2.5 = 100.


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