Two places A and B are at 6 km distance from each other. At he same ti

1.	Two places A and B are at 6 km distance from each other. At he same time two people start to run towards each other and meet in 45 mm. If they run in same direction, then they meet in 6 hours. Find their speed.
Answer» Let their speed be x and y km/h them x + y = \(\frac { 6\times 4 }{ 3 }\) = 8 ⇒ x + y = 8 ⇒ x – y = \(\frac { 6 }{ 6 }\) ⇒ x – y = 1 on solving (i) and (ii) 2x = 9, x = 4.5 km/h and y = 3.5 km/h Hence, their spiced are 4.5 km/h and 3.5 km/h

Two places A and B are at 6 km distance from each other. At he same time two people start to run towards each other and meet in 45 mm. If they run in same direction, then they meet in 6 hours. Find their speed.

Answer»

Let their speed be x and y km/h them

x + y = \(\frac { 6\times 4 }{ 3 }\) = 8

⇒ x + y = 8

⇒ x – y = \(\frac { 6 }{ 6 }\)

⇒ x – y = 1

on solving (i) and (ii)

2x = 9, x = 4.5 km/h

and y = 3.5 km/h

Hence, their spiced are 4.5 km/h and 3.5 km/h