In a theatre the ratio of car & two wheeler is 1:8. Total Number of tyres are 100. Find how many are cars and how many are two wheelers?

Vasyl, Ukraine

• Sep 7th, 2011

There will be system:
2x + 4y = 100
8y=x

where x - amount of bikes; y - amount of cars;

16y + 4y =100 >> 20y=100 >> y =5 (cars)
x = 5*8 = 40 (bikes)

Dipayan Talapatra

• Sep 2nd, 2011

Wheel ratio= 4:16=1:4
so,
cars=100*1/5=20
and
bike=100-20=80

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