In a hostel, there is food provision enough for 60 days for certain number of students. If after 12 days, 80 more students joins so the remaining food quantity can last only for next 36 days. How many students were there initially in the hostel?
In a class there are certain number of students and their average weight is 15 kg. If 6 students with average weight of 18 kg join or 9 students with average weight of 14 kg leaves, then in both the cases weight of students remains same. How many students are there initially in a class?
A certain number of workers can finish a piece of work in 100 days. If there were 10 workers less, it would take 10 days more for the work to be finished. How many workers were there originally?
A certain number of men can finish a piece of work in 30 days. If however there were 15 men less it will take 30 days more for the work to be finished. How many men were there originally?
In a class there are total 63 students. The average age of girls is 24 years and that of boys is 21 years. If the average age of whole class is 22 years and 8 months, then how many boys are there in a class?
In a school prayer line Amit is 11th from the top and Virendra is 5th from the bottom. If Amit is 5 student ahead of Virendra, then how many students are there in the line?
