Question

From a roll of 130m long electric wire,a piece of 18m 75cm is cut .Find the length of wire left in the roll ​

Answer 1

Answer:

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Step-by-step explanation:

given length = 130m = 13000cm

Length of wire that is cut off = 18m 75cm = 1800cm+7500cm = 9300cm

Therefore, left wire = 13000cm - 9300cm = 3700cm = 37m.

Answer 2

Answer:

11m 75cm

Step-by-step explanation:

Concept= Mensuration

Given= Length of roll of electric wire and the part cut.

To find= The length of remaining wire.

Explanation=

We have been that from a roll of 130m long electric wire, a piece of 18m 75cm is cut .Find the length of wire left in the roll ​.

So the total length of the wire is 130m.

Piece cut out =  18m 75cm

To find the length of left wire we will subtract the two values.

First we convert the length of wire in centimeters.

We know that 1 meter = 100 centimeter.

1m = 100cm

So the total length of wire is 130*100 = 13000cm

The length of wire cut out is 18m75 cm=18*100 + 75 = 1800 + 75 = 1875cm

So now we subtract the two values to get the remaining part.

=> 13000 - 1875 = 11125 cm

Now we convert 11125 in to meters which is

11125 = 111*100 + 25 = 111m 25cm.

Therefore the length of wire left in roll is 11m 75cm.

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