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bhanu kushwaha

· started a discussion

· 1 Months ago

Pls explain (Question:249235.0)

Pls explain this

Question:
Kapil and Sonia started from A and B for B and A, which are 795 Km apart. They meet after 15 hours. After meeting, Kapil reduced his speed by 3 Km/h and Sonia increased by 3 Km/h, they arrived at same time. What was the speed of Sonia?
Options:
A) 25 Km/h 
B) 28 Km/h
C) 23 Km/h
D) 27 Km/h 
Solution:

Ans: (a) 


Knowledge Expert

· commented

· 1 Months ago

Dear student
The sum of their speeds = x + y =795/15 = 53 km/h
Notice that they are actually exchanging their speeds.
As they arrives at the same time at their
respective destinations.
It means the difference in speeds is 3 km/h.
Thus, x + ( x + 3) = 53
x = 25
hope it work.

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