The task is to generate the correct answer for a given math problem.

[Q]: Problem: two trains each 120 m in length each , are running on two parallel lines in opposite directions . if one goes at the speed of 85 km / h while the other travels at 65 km / h . how long will it take for them to pass each other completely .
[A]: 10.07 sec


[Q]: Problem: a train 140 m long is running at 60 kmph . in how much time wiu it pass a platform 260 m long ?
[A]: 24 sec


[Q]: Problem: 90 students represent x percent of the boys at jones elementary school . if the boys at jones elementary make up 60 % of the total school population of x students , what is x ?
[A]:
122