Ratios and Rates

Hong Kong

Stage 1 - Stage 3

A piece of rope is cut into three lengths in the ratio $6:7:10$6:7:10. If the shortest length is $24$24 m:

a

Find the middle length of the rope.

b

Find the longest length of the rope.

c

Now calculate the total length of the rope.

Easy

Approx 2 minutes

The ratio of bikes to helmets is $7:4$7:4. If there are $21$21 bikes, how many helmets are there?

The ratio of men to women at a concert is $15:45$15:45. If there are $15$15 women, what is the number of men, $x$`x`?

Find the value of $a$`a` if:

$a:2=48:16$`a`:2=48:16

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