Question

A piece of wood is of length 45 cm. The length is divided in the ratio 7 : 2 What is the length of each part.

Answer 1

Answer:

35cm ,10cm

Step-by-step explanation:

Ratio=7:2

Length of wood=45cm

Total parts=7+2 = 9 parts

9 part s=45cm

1 part=5 cm

7 parts=35cm 2 parts=10cm

Answer 2

Answer:

Step-by-step explanation:

let the ratio be 7x and 2x

now we can compare the ratios as:

7x+2x=45

9x=45

x=45/9

i.e.=5

now,the length of the first part as we had assumed

=7x=7×5

ans=35cm

length of sencond part of wood=

2x=2×5

ans=10cm

Hope u understood my explanation