Two trains , one from Dhaka and another from Chittagong simultaneously started to proceed towards each other at the speed of 16km and 21 km per hour respectively. As the trains met each other it was found that one train traveled 60 km more than the other. Calculate the distance between Dhaka to Chittagong.
Sakib and Labib individually borrowed different amount of money from a particular bank on the same day at rate of 20% simple interest . The total money paid by Sakib in 3 years as principal plus interest was the same amount Labib paid 2 years as participial plus interest. Find the rating of their individual loan amount.