Question

Direction for Question (18) & (19): Prachi and Richa start simultaneously towards each other at different speeds from P and Q towards Q and P respectively. When they cross each other for the first time, they are 500 m from P. When they reach the Q and P respectively, they turn around and move towards each other once again. When they cross each other for the second time, they are 300 m from Q. (Important Concept from Latest CAT paper) (18) What is the distance between P and Q? a) 800 m b) 1000 m c) 1200 m d) 1500 m e) None of these (19) What is the ratio between the speed of Prachi and Richa? a) 3:5 b) 5:3 c) 5:7 d) 3:7 e)7:5​

Answer 1

Answer:

Let speed of Train B = x

120/x= √(9/16)

=> x = 4 x 120/3 = 160 km/hr

Note : This can be solved without using this formula by using fundamentals of Time, Speed & Distance

Answer 2

Answer:

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