SOLUTION: MR RAVI LEFT HOME AT 3.15PM. AND WENT TO THE JOHOR BARU FERRY TERMINAL IN MALAYSIA BY TAXI. HALF HOUR LATER, MRS RAVI LEFT HOME AND DROVE TOWARDS THE JOHOR BARU FERRY TERMINAL AT A

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Question 144657: MR RAVI LEFT HOME AT 3.15PM. AND WENT TO THE JOHOR BARU FERRY TERMINAL IN MALAYSIA BY TAXI. HALF HOUR LATER, MRS RAVI LEFT HOME AND DROVE TOWARDS THE JOHOR BARU FERRY TERMINAL AT AN AVERAGE SPEED OF 60KM/H. WHEN SHE REACH THE FERRY TERMINAL AT 6.15PM, MR RAVI WAS 15KM FROM THE FERRY TERMINAL.
(A)FIND MR RAVI'S AVERAGE SPEED.
(B)WHEN WILL MR RAVI REACH THE FERRY TERMINAL.

*PLS TRY NOT TO USE ALGEBRA
Answer by scott8148(5880) (Show Source):
You can put this solution on YOUR website!
it took Mrs. Ravi 2.5 hours to reach the terminal __ traveling at 60km/h means the terminal is 150 km (2.5*60) from their home

when Mrs. Ravi reached the terminal; Mr. Ravi had been traveling for 3 hrs, and he had gone 135 km (150-15)

Mr. Ravi's average speed is 135/3 or 45km/h

it will take him another 20 min (15km/45km/h) to reach the terminal __ 6:15 plus 20 min is 6:35