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:
21 comments Page 1 of 3.

Niki L sanchu said:   5 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.

James said:   5 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.
(4)

Gowthami said:   1 decade ago
A runs=22.5=(22.5*10)/10=45/2(multiply and divide with 10 both numerator and denominator)
B runs=25m
then 45/2------25
1 part=25*2/45
=10/9
B beats a=(9/10)*1000metres
900metres
so 1000-900=100 points B beat by A

Sindhu said:   8 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)

M GANESH KUMAR said:   5 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.
(4)

Anand said:   1 decade ago
Here the simple solution.

Out of 25 A beats B by (25-22. 5=2. 5).

Out of 25 A beats B by 2. 5.

Then out of 10000=?

Ans;100*2. 5/25 = 100 m.

Pranay said:   9 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.

Senthil km said:   1 decade ago
For 25m a can give a lead of 2.5m the for 100m a can give b a lead of (4*2.5) 10m. For 1000m(1km) a can give a lead of (10*10) 100m.

Sumsul alam said:   1 decade ago
1 km=1000 meter.
In case of B- 1000 meter/25 = 40.
Now in case of A 40*22.5 = 900 meter.

1000-900 = 100.
So defeat by 100 meter.

Keerthika senthur said:   1 year ago
1km = 1000m.
1000/25 = 40.
So, the diff between a &b is 25 - 22.5 = 2.5,
So, the answer will be 2.5 * 40 = 100.
(1)


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