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?

Consider the mess charges for 35 students for 24 days is ₹ 6300. How much will be the mess charges for 25 students for 18 days ?

The expenditure for 18 students in a hostel per month is ₹ 2700. If the expenditure in a month is raised to ₹ 3300, how many more students are joined in that month ?

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

A class teacher has the following attendance record of 40 students of a class of for the whole term . Find the mean number of days a student was present out of 56 days in the term . {:("Number of days","Number of students"),(35-38,1),(38-41,3),(41-44,4),(44-47,4),(47-50,7),(50-53,10),(53-56,11):}

A body is thrown vertically up with a velocity of 100 m/s and another one is thrown 4 sec after the first one. How long after the first one is thrown will they meet?

Long jump made by 30 students of a class are tabulated as How many students jumped a distance of 3.01m or more?