Question

A rope of 77 mts is cut into 2 pieces such that the length of 1 piece is 4/7th of the other. what is the length of the 3/14th of the longer piece in mts.

the ans is 10.5
pls help me

Answer 1

Answer:

wait I'll help u...

Step-by-step explanation:

Total length of the rope is 77 .

Let 'A' and 'B' be the two pieces into which the rope is cut.

Let 'x' be the length of rope 'A'

Therefore length of rope 'B' = 4/7(X)

Total length of rope

= A+b

=77

A+B =77

x + (4/7)×x =77

11/7×x =77

x=49 meters ( length of rope A)

Length of rope B = 4/7(49)

B=28meters.

We know that A is the largest piece

So 3/4th of rope A

= 3/4(49)

=36.75meters .

hope it will help u...

but how can the answer be 10.5

Answer 2

Answer:

10.5m

Step-by-step explanation:

Let x be the length of the longer piece.

x + 4/7x = 77

11/7x = 77

x = 49

Now we know to length of longer piece, we simple had to find out 3/14 of 49

3/14 x 49 = 10.5 m