Races and games
- In a 200 m race, A can beat B by 50 m and B can beat C by 8 m. In the same race , A can beat C by what distance?
-
View Hint View Answer Discuss in Forum
According to the question, A : B = 200 : 150
and B : C = 200 : 192
∴ A : C = (A/B) x (B/C) = (200/150) x (200/192) = 200/144Correct Option: C
According to the question, A : B = 200 : 150
and B : C = 200 : 192
∴ A : C = (A/B) x (B/C) = (200/150) x (200/192) = 200/144
So, A beats C by (200 - 177) = 56 m
- In a game of 160 points, A can give 10 points to B and 30 points to C. How many points B can give C in a game of 60 ?
-
View Hint View Answer Discuss in Forum
A : B = 160 : 150, A : C =160 : 130
B/C = (B/A) x (A/C) = (150/160) x (160/130) = 15/13 = 60 : 52Correct Option: D
A : B = 160 : 150, A : C =160 : 130
B/C = (B/A) x (A/C) = (150/160) x (160/130) = 15/13 = 60 : 52
∴ In a game of 60, B can give C = (60 - 52)= 8 points
- Yogesh can run 1km in 6 min 20 s and Vijay can cover the same distance in 6 min 40 s . By what distance can Yogesh beat Vijay?
-
View Hint View Answer Discuss in Forum
Clearly, Yogesh beats vijay by 20 s.
Distance covered by vijay in 400 s = 1000 m
[∵ 6 min 40 s = 400 s]Correct Option: A
Clearly, Yogesh beats vijay by 20 s.
Distance covered by vijay in 400 s = 1000 m
[∵ 6 min 40 s = 400 s]
Distance covered by Vijay in 20 s = (1000/400) x 20 m = 50 m
∴ Yogesh beats Vijay by 50 m.
- L can run 1 km in 10 min while M can run it in 12 min. How many metres start can L give M in a km race, so that the race may end in a dead heat?
-
View Hint View Answer Discuss in Forum
Time taken by L to run 1 km = 600 s
Time taken by M to run 1 km = 720 s
∴ L can give M a start of (720 - 600) = 120 sCorrect Option: A
Time taken by L to run 1 km = 600 s
Time taken by M to run 1 km = 720 s
∴ L can give M a start of (720 - 600) = 120 s
∵ In 720 s, M runs 1000 m.
In 120 s M runs = (1000/720) x 120 = 500/3 m = 1662/3 m
Hence, L can give a start of 1662/3 m
- X covers 1 km in 8 min 40 s while Y covers the same distance in 10 min. By what distance does X defeat Y?
-
View Hint View Answer Discuss in Forum
Clearly, X beats Y by 8 s.
Distance covered by Y in 600 s = 1000 mCorrect Option: D
Clearly, X beats Y by 8 s.
Distance covered by Y in 600 s = 1000 m
(∵ 10 min = 600 s)
Distance covered by Y 80 s. = (1000/600) x 80 = 400/3 m = 1331/3 m