11 Year Old Maths Homework Question

[bobthebandit]

In a wood are there are 300 trees. The ratio of oak to ash trees is 2:13. How many ash trees are there in the wood?
All replies gratefully received.

[elliemay1]

260

[Dinkypuzzled]

Divide 300 by 15.
multiply by 13

[bibblebub]

as fractions, 2/15 are oaks and 13/15 are ash

so number of ash trees = 300 * 13/15 = 260

[ubasses]

260

[sherrardk]

The way I would do it - for every 15 trees, 2 are oak and 13 are ash. How many 15's in 300? 20 - so there are 20 x 2 oak trees (40) and 20 x 13 ash trees (260).

[elliemay1]

2+13=15
Divide 300 by 15=20.
2x20=40oak
13x20=260ash.

[bobthebandit]

Many thanks for your answers!

[Sparkles62]

260
13 of every 15 are ash, 260 in 300