Question

The difference between 12 times the length and 10 times the length of a line is 120 cm. Taking the length of
the line to be x, find the length of the line in centimetres.

(Set up an equation and solve the above question) ​

Answer 1

So, let's consider the length as x cm

So, we can write the difference of 12 times the length and 10 times the length of a line is 120 cm as

In equation,

12x - 10x = 120 cm

or, 2x = 120 cm

or, x or length = 120/2 cm

= 60 cm

So, the length of the line is 60 cm (Ans)

HOPE IT HELPS......

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