Primary Mathematics Challenge - 2022 - 8

8

The spider and the slug love each other. They are 44 cm apart. The spider runstowards the slug at 7 cm/sec and the slug slides towards the spider at 4 cm/sec.How long is it before they meet?

A. 2 sec

B. 3 sec

C. 4 sec

D. 12 sec

E. 60 sec

Answer

C. 4 sec

‍

SOLUTIOn

The gap between the spider and the slug closes at 7 + 4 = 11 cm/sec. As they are 44 cm apart, it will take 4 seconds for the gap to close.

But how fast can slugs go?

4 cm/sec does seem fast for a slug!

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