Rajneesh covers equal distances at speeds of 6 km/h, 4 km/h and 8 km/h respectively and takes a total time of 32.5 minutes. Find the total distance in km.
A. 4
B. 2
C. 1
D. 3
- AOption (a)
D
- BOption (b)
B
- COption (c)
C
- DOption (d)
A
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Correct answer
D
Why this answer is correct
Given:
Rajneesh speed 6 km/h, 4 km/h, 8 km/h.
Total time = 32.5 minutes
Formula used:
Speed = Distance/Time
Calculation:
Let the distance be 'x' km.
Total time taken
⇒ (x/6) + (x/4) + (x/8) hr = 32.5 minutes
⇒ (13x/24) hr = 32.5 minutes
⇒ (13x/24) × 60 minutes = 32.5 minutes
⇒ x = 1 km
Total distance covered
⇒ 1 + 1 + 1
⇒ 3 km
∴ The total distance is 3 km.