In a 100 m race, A can beat B by 25 m and B can beat C by 4 m. In the same race, A can beat C by:
A : B = 100 : 75
B : C = 100 : 96.
A : C =AxB=100x100=100= 100 : 72.BC759672
A beats C by (100 - 72) m = 28 m.
In a 100 m race, A can give B 10 m and C 28 m. In the same race B can give C:
A : B = 100 : 90.
A : C = 100 : 72.
B : C =BxA=90x100=90.AC1007272
When B runs 90 m, C runs 72 m.
When B runs 100 m, C runs72x 100m= 80 m.90
B can give C 20 m.
A and B take part in 100 m race. A runs at 5 kmph. A gives B a start of 8 m and still beats him by 8 seconds. The speed of B is:
A's speed =5 x5m/sec=25m/sec.1818
Time taken by A to cover 100 m =100 x18sec= 72 sec.25
Time taken by B to cover 92 m = (72 + 8) = 80 sec.
B's speed =92x18kmph= 4.14 kmph.805
In a 500 m race, the ratio of the speeds of two contestants A and B is 3 : 4. A has a start of 140 m. Then, A wins by:
To reach the winning post A will have to cover a distance of (500 - 140)m, i.e., 360 m.
While A covers 3 m, B covers 4 m.
While A covers 360 m, B covers4x 360m= 480 m.3
Thus, when A reaches the winning post, B covers 480 m and therefore remains 20 m behind.
A wins by 20 m.
In a 100 m race, A beats B by 10 m and C by 13 m. In a race of 180 m, B will beat C by:
A : C = 100 : 87.
B=BxA=90x100=30.CAC1008729
When B runs 30 m, C runs 29 m.
When B runs 180 m, C runs29x 180m= 174 m.30
B beats C by (180 - 174) m = 6 m.
At a game of billiards, A can give B 15 points in 60 and A can give C to 20 points in 60. How many points can B give C in a game of 90?
A : B = 60 : 45.
A : C = 60 : 40.
B=BxA=45x60=45=90= 90 : 80.CAC60404080
B can give C 10 points in a game of 90.
In a race of 200 m, A can beat B by 31 m and C by 18 m. In a race of 350 m, C will beat B by:
A : B = 200 : 169.
A : C = 200 : 182.
C=CxA=182x200= 182 : 169.BAB200169
When C covers 182 m, B covers 169 m.
When C covers 350 m, B covers169x 350m= 325 m.182
Therefore, C beats B by (350 - 325) m = 25 m.
In a game of 100 points, A can give B 20 points and C 28 points. Then, B can give C:
A : B = 100 : 80.
B=BxA=80x100=10=100= 100 : 90.CAC10072990
B can give C 10 points.
In 100 m race, A covers the distance in 36 seconds and B in 45 seconds. In this race A beats B by:
Distance covered by B in 9 sec. =100x 9m= 20 m.45
A beats B by 20 metres.
A can run 22.5 m while B runs 25 m. In a kilometre race B beats A by:
When B runs 25 m, A runs45m.2
When B runs 1000 m, A runs45x1x 1000m= 900 m.225
B beats A by 100 m.