Question

A 540m length of road is being repaired. after 1day the workers repaired 2/3part of road. what length of the road is being left unrepaired?​

Answer 1

Answer:

the workers repaired 2/3 part of the road

unrepaired road is (1-2/3)part=1/3 part

length of the road is 540 m

so, unrepaired road=540×1/3 m=180 m

Answer 2

Question:-

A 540m length of road is being repaired. After 1day the workers repaired 2/3 part of road. What length of the road is being left unrepaired?

Required Answer:-

Given:-

• The length of the road is 540m
• After 1 day, 2/3 part of the road is repaired.

To Find:-

• Length of the road being left unrepaired.

Solution:-

Method -1 :-

(First, we can find the length of the road which is repaired. Then we'll minus the length of repaired from the length of the whole road to find out the length of unrepaired road)

The length of the repaired road = (540 of 2/3)m

=> The length of the repaired road = (540 × 2/3)m

=> The length of the repaired road = 360m

Now,

Length of the unrepaired road = (Length of the road - length of the repaired road)

=> Length of the unrepaired road = 540m - 360m

=> Length of the unrepaired road = 180m

Hence, 180m road is being left unrepaired.

Method -2:-

(Here, we can first find what part of the road is being unrepaired, then find the length of the unrepaired road.)

The part of whole road is 1

The part of repaired road is 2/3

∴ The part of unrepaired road = (1 - 2/3) = 1/3

Therefore,

The length of the unrepaired road = (540 of 1/3)m

=> The length of the unrepaired road = (540 × 1/3)m

=> The length of the unrepaired road = 180m

Hence, 180m road is being left unrepaired.