kelly is 140cm tall, that is just 4 cm short of twice as tall as her sister,how tall is her sister?

Answer 1

72!
140+4=144/2

Answer 2

This is saying that Kelly's sister is 1/2 the height of 144cm. 144/2=72cm
So her sister is 72cm. if you want to convert this to inches, one inch equals 2.54cm.