Question

a line is divide in to two parts in the ratio 2.5:1.3.if the smaller one is 35.1 cm find the length of the line.

Answer 1

Let x be the ratio

So,

=2.5x:1.3x

According to the question

1.3x=35.1

x=27

So,

Length of whole line =2.5*27+35.1

= 67.5+35.1

=102.6

Answer 2

1.3x =35.1

2.5x=?

By cross multiplication

(35.1×2.5x)/1.3x=87.75x/1.3x=67.5

So longer is_67.5

Length of the line=35.1+67.5=102.5