What is the speed of a train if it overtakes two persons who are walking in the same direction at the rate of am/s and (a + 1) m/s and passes them completely in b seconds and (b + 1) seconds respectively?

$\frac{{2{\text{a}} + 1}}{2}$$ m/s

What is the speed of a train if it overtakes two persons who are walki

1.	What is the speed of a train if it overtakes two persons who are walking in the same direction at the rate of am/s and (a + 1) m/s and passes them completely in b seconds and (b + 1) seconds respectively?
A.	a + b) m/s
B.	a + b + 1) m/s
C.	2a + 1) m/s
D.	$\frac{{2{\text{a}} + 1}}{2}$$ m/s
Answer» C. 2a + 1) m/s

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What is the speed of a train if it overtakes two persons who are walking in the same direction at the rate of am/s and (a + 1) m/s and passes them completely in b seconds and (b + 1) seconds respectively?

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