Question

In a hostel it cost rupees 1800 to keep 50 childrens for 8 weeks for what length of time did the cost of keeping 90 childrens amount 2 Rupees to 21060

Answer 1

Given Amount required for 50 children for 8 weeks = 1800.

Then Amount required for 1 children for 1 week = 1800/50 * 8

                                                                                = 4.5.

Amount required for 90 children for 1 week = 90 * 4.5

                                                                          = 405.


Then the length of time for keeping them  for 21060 = 21060/405

                                                                                         = 52.

The length of time = 52 weeks.


Hope this helps!