A mathematics speed test started at 8.40 a.m and ended at 9.20 a.m. How long was the speed test

      

A mathematics speed test started at 8.40 a.m and ended at 9.20 a.m. How long was the speed test

  

Answers

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Time ended 9.20 a.m
-Time started8.40 a.m
40 min

Borrow one hour from the 9 and

add to 20 min before take away.

The test was 40 minutes long

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johnmulu answered the question on March 10, 2017 at 04:51

Next: A metal P is an alloy of two metals Q and R. Metal Q has a mass of 70 g and a density of 16 g/cm³. Metal R has a mass of 19 g and a density of 4 g/cm³. Find the density of the alloy
Previous: A motorist took 2$\frac{3}{4}$ hours to travel from town A to town B. If he started the journey at 10.30 a.m, determine the time the journey ended in

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