Aptitude - Races and Games - Discussion
Discussion Forum : Races and Games - General Questions (Q.No. 2)
2.
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:
Answer: Option
Explanation:
| A's speed = |  |
5 x | 5 |  m/sec |
= | 25 | m/sec. |
| 18 | 18 |
| Time taken by A to cover 100 m = | |
100 x | 18 | sec |
= 72 sec. |
| 25 |
Time taken by B to cover 92 m = (72 + 8) = 80 sec.
| B's speed = |
|
92 | x | 18 | kmph |
= 4.14 kmph. |
| 80 | 5 |
Discussion:
29 comments Page 3 of 3.
Faizal khan said:
3 years ago
@Ramanjaneyulu.
Multiplying by 5/18, you can convert km/h to m/s.
Multiplying by 5/18, you can convert km/h to m/s.
(6)
Anamika Sinha said:
1 decade ago
How did you get A's speed ? I dint understand. Please explain.
Anusha said:
5 years ago
Nice explanation, thanks @Buddhika.
Ramanjaneyulu said:
3 years ago
How 5/8 came? please explain me.
(2)
Sileshi said:
6 years ago
How come 5/18? Please tell me.
Rocktim said:
6 years ago
How come 5/18? Please tell me.
(1)
Sayed said:
1 decade ago
How A's speed is found ?
Mariyappa said:
8 years ago
How get 18 came here?
(1)
Deepali said:
1 decade ago
How get 18?
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