Page 1 - Home Assignment
P. 1

Home Assignment-5

               1. Megha and Anu are running on a circular track. Megha completes one round in 5

               minutes and Anu completes one round in 7 minutes. After how much time will they
               meet at the starting point, if they start running together and don’t take any break in

               between?
               2. The traffic lights at three different road crossings change after every 48 seconds,

               72 seconds and 108 seconds respectively. If they change simultaneously at 7 a.m.,

               at what time will they change simultaneously again?
               3. Find the LCM of the following numbers: Observe a common property in the
               obtained LCMs. Is LCM the product of two numbers in each case?
                             (a) 6 and 5          (b) 15 and 4

               4.  Find the LCM of the following numbers in which one number is the factor of the
               other.

                           (a) 12, 48           (b) 9, 45
               5. Find the least number which when divided by 6, 15 and 18 leave remainder 5 in
               each case.
   1