Aptitude - Time and Distance - Discussion
Discussion Forum : Time and Distance - General Questions (Q.No. 7)
7.
A man complete a journey in 10 hours. He travels first half of the journey at the rate of 21 km/hr and second half at the rate of 24 km/hr. Find the total journey in km.
Answer: Option
Explanation:
| (1/2)x | + | (1/2)x | = 10 |
| 21 | 24 |
 |
x | + | x | = 20 |
| 21 | 24 |
15x = 168 x 20
| x = |
 |
168 x 20 |  |
= 224 km. |
| 15 |
Discussion:
141 comments Page 14 of 15.
Kavitha said:
1 decade ago
How you got LCM as 45x/105?
Nithin said:
7 months ago
The right answer is 234 km.
(4)
Sharayu Vidhate said:
8 years ago
D = St.
5*21+5*24 = 225km.
5*21+5*24 = 225km.
Aryan said:
6 years ago
2x21x24 = 1008÷10 = 224.
Sourabh said:
5 years ago
How came 20? Explain me.
Shro said:
1 decade ago
Thank you Abhishek :).
Shadab said:
2 decades ago
How this 15x arrives?
Prateek said:
10 years ago
How does 15x arrived?
Captain said:
7 years ago
Thank you @Jing.
Ranjitha said:
1 decade ago
How you get 20?
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers