Ben is 140cm tall. Mike is 1090mm tall. Who is taller? How much taller?

asked Nov 12, 2015 37.7k views

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2 votes

1090mm into m = 109cm

$\left[\begin{array}{ccc}1& ^(3) 4& ^(10) 0\\1&0&9\\\\&3&1\end{array}\right]$ so Ben is taller by 31cm

DaveUK answered Nov 14, 2015

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3 votes

1cm = 10cm
140cm=1400mm So Ben taller

Difference is bigger minus smaller
1400-1090=310mm :)
(=31cm)

Joe Gayetty answered Nov 18, 2015

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