Q1. In a seminar the number of participants in Technology Economics and Science are 150 90 and 180 respectively Find the minimum number of rooms required where in each room the same number of participants are to be seated and all of them being in the same subject

Q2. Find the least perfect square number which is divisible by 12 15 25

Q3. 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

Q4. Four bells toll at intervals of 6 8 12 and 18 minutes respectively If they start tolling together at 12 am How many times will they toll together in 6 hours

Q5. The H C F and L C M of two numbers are 12 and 5040 respectively If one of the numbers is 144 find the other number