The speeds of Noel and Joel are 30 km h and 40 km h Initially Joel is at a place X and Noel is at a ...........

Quantitative Aptitude ( CCS) Time & distance

The speeds of Noel and Joel are 30 km/h and 40 km/h. Initially Joel is at a place X and Noel is at a place Y. The distance between X and Y is 650 km. Noel started his journey 3 hours earlier than Joel to meet each other. If they meet each other at a place Z somewhere between X and Y, then the distance between Z and Y is:

420km

290km

360km

330km

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Explanation:

Solution:
Distance between X and Y 650km.
In 3 hrs noel covered 3*30=90km.
Then only Joel starts.
Their meeting time be =560(650-90)/70(30+40) =8hrs.
Distance between Y and Z=(8*30)+90=330km.