(1) On the playground, if the children are made to stand for drill either 20 to a row
or 25 to a row, all rows are complete and no child is left out What is the lowest
possible number of children in that school?
(2) Veena has some beads She wants to make necklaces with an equal number of
beads in each If she makes necklaces of 16 or 24 or 40 beads, there is no bead
left over What is the least number of beads with her?
(3) An equal number of laddoos have been placed in 3 different boxes The laddoos
in the first box were distributed among 20 children equally, the laddoos in the second box among 24 children and those in the third box among 12 children Not a single laddoo was left over Then, what was the minimum number of laddoos in the three boxes altogether?
(4) We observed the traffic lights at three different squares on the same big road They turn green every 60 seconds, 120 seconds and 24 seconds When the signals were switched on at 8 o’clock in the morning, all the lights were green How long after that will all three signals turn green simultaneously again?
(5) Find out the LCM of the following numbers
(1) 9, 15 (2) 2, 3, 5
