A camp has food stock for 500 people for 70 days. If 200 more people join the camp,how long will the stock last?

For a group of 500 members is a food provision for 24 days. If 300 more Joined in the group for how many days the food will be sufficient?

The temperature has dropped by 15 degree celsius in the last 30 days. If the rate of temperature drop remains the same, how much more will be the temperature drop in the next 10 days ?

Ration is available for 100 students in a hostel for 40 days. How long will it be last, if 20 more students join in the hostel after 4 days?

A contractor construction job specifies a penalty for delay of completion beyond a certain date as follow. Rs. 200 for the first day. The penalty for each succeeding day being Rs. 50 more than the preceding day. How much money does the contractor pay as penalty if he has delayed the work by 30 days?