# Aptitude - Races and Games - Discussion

### Discussion :: 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:

[A]. 100 m
[B].
 111 1 m 9
[C]. 25 m
[D]. 50 m

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.

 Srinivasskc said: (Apr 27, 2011) Can any one explain this?

 Abhishek said: (May 24, 2011) Can any one explain why they are calculating with 1/25?

 Usha said: (May 31, 2011) can any one explain why they r calculation with 45/2?

 Tarannum said: (Jun 1, 2011) Please help me to get this solution why they have calculated with 45/2

 Gowthami said: (Jun 7, 2011) 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

 Anand said: (Feb 1, 2013) 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.

 Senthil Km said: (Feb 11, 2013) 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.

 Ajay said: (Feb 21, 2013) Very easy: 25*40=1000(1 km) 22.5*40=900 (1000-900)=100m.

 Riya said: (Mar 17, 2013) 1 kilometer = 1000 m. 1000*22.5/25 = 900. Then 1000-900 = 100 m.

 Sumsul Alam said: (May 23, 2013) 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.

 Ravi: said: (May 17, 2015) If 25---->2.5. 1000......> (?). (1000/25)*2.5 = 100.

 Sana Shaikh said: (Aug 11, 2016) I understand it clearly.

 Sana Shaikh said: (Aug 11, 2016) Can anyone explain how they are calculating with 1/25 or 45/2? I so confuse.

 Pranay said: (Feb 12, 2017) 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.

 Sindhu said: (Dec 3, 2017) 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.

 Namrata said: (Jan 25, 2018) Thanks @Anand.

 Kiran said: (Feb 13, 2018) Thanks @Ravi. It's very simple calculation.