Task: Question Answering
Input (English): Problem: if two projectiles are launched at the same moment from 2520 km apart and travel directly towards each other at 432 km per hour and 576 km per hour respectively , how many minutes will it take for them to meet ? 
Options: a ) 130 , b ) 135 , c ) 140 , d ) 145 , e ) 150
Output (English): e