Sunday, July 14, 2013

IPM mega final STD IV answer

on a play ground the number of bicycles are 5 times than the number of tricycles. if the total number of wheels are 39, then how many children in all were playing with their cycles?





Answers:
if the number of tricycle is y
then number of bicycle is 5y
so, 3y + 2 x 5y = 39
13y = 39
y = 3
bicycles = 5 x 3 = 15
total number of cycles = 3 + 15 = 18.

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