Question

iii) A rope of length 150 cm is divided into two pieces such that their lengths are in the ratio 3 : 7. Find the length of each piece of the rope.




​

Answer 1

Answer:

Given, the length are in the ratio 3:7

Let the lengths be 3x and 7x

According to the question

3x+7x=150 cm

x=15

The length of first piece of rope is 3x = 3*15=45 cm

The length of second piece of rope is 7x=7*15=105 cm

please mark as brainliest

Answer 2

Answer:

The length of first piece of rope $=45cm$

The length of 2nd piece of rope $=105cm$

Step-by-step explanation:

Given, total length of rope $=150cm$

Ratio of two pieces of the same rope are $3:7$

Consider that the length of 1st piece $=3x$

and length of 2nd piece $=7x$

Now, $3x+7x =150$

⇒  $10x=150$

∴   $x=15$

Therefore length of 1st piece of rope $=3*15=45cm$

And, length of 2nd piece of rope $=7*15=105cm$