Aptitude - Time and Distance - Discussion
Discussion Forum : Time and Distance - General Questions (Q.No. 9)
9.
A man on tour travels first 160 km at 64 km/hr and the next 160 km at 80 km/hr. The average speed for the first 320 km of the tour is:
Answer: Option
Explanation:
| Total time taken = |  |
160 | + | 160 |  hrs. |
= | 9 | hrs. |
| 64 | 80 | 2 |
 Average speed = |
|
320 x | 2 | km/hr |
= 71.11 km/hr. |
| 9 |
Discussion:
63 comments Page 6 of 7.
Jai said:
1 decade ago
Can you explain how 9/2 hours came ?
Sushil said:
7 years ago
Thanks alot for the answer @Sundar.
Rajan gond said:
4 years ago
We can apply 2xy/x+y.
Am I right?
Am I right?
(17)
Rahul said:
9 years ago
Why can't we use 64 + 80/2 = 72?
(1)
Prashanthi said:
7 years ago
Thanks for the solution @Kapil.
Fatima said:
1 decade ago
Thank you so much Sundar.
Girish said:
7 years ago
Well explanation, Thanks.
Vengatesh said:
9 years ago
Super, Thank you all.
Divya said:
7 years ago
Good, Thanks @Sundar.
Samy said:
1 decade ago
Thank you suguraman.
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