Homework Help: math

Posted by don on Saturday, August 4, 2012 at 8:25pm.

front wheels of a cart have a circumference of 3 metres.back wheels have a circumference of 4 metres.A white dot is painted on the rim of each wheel it touches the ground.the cart is then driven 100 metres.including the starting position,how many times will the white dots be on the ground together?

math - Ms. Sue, Saturday, August 4, 2012 at 8:33pm
The least common multiple of 3 and 4 is 12.

100 / 12 = 8.3

Including the starting position, the white dots will be on the ground together 9 times.

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