What is the maximum length of equal pieces of cardboard that Nirmala can get, if she breaks two bars of cardboard 84 cm and 156 cm long?

14 cm

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15 cm

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16 cm

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12 cm

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Solution

The correct option is D
12 cm

In order to find the maximum length of equal pieces of cardboard that Nirmala can get, we need to find the highest common factors of the lengths of the cardboard.

Using division method to find H.C.F:

Hence, the maximum length of equal pieces of cardboard Nirmala can get is 12 cm.

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What is the maximum length of equal pieces of cardboard that Nirmala can get, if she breaks two bars of cardboard 84 cm and 156 cm long?

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