Q1. A B and C start at the same time in the same direction to run around a circular stadium A completes a round in 252 seconds B in 308 seconds and c in 198 seconds all starting at the same point After what time will they again at the starting point

Q2. Numbers of students who have opted the subjects A B C are 60 84 108 respectively The examination is to be conducted for these students such that only the students of the same subject are allowed in one room Also the number of students in each room must be same What is the minimum number of rooms that should be arranged to meet all these conditions

Q3. If the L C M of x and y is z their H C F is

Q4. Amit Sucheta and Neeti start running around a circular track and complete one round in 18 24 and 32 seconds respectively In how many seconds will the three meet again at the starting point if they all have started running at the same time

Q5. The least number which when divided by 12 15 20 and 54 leaves in each case a remainder of 8 is