Sumitha buys 15 m and 25 cm of ribbon to decorate a gift box. But the ribbon was short by 85 cm. What is the required length of ribbon for the gift box?
A
10 m 16 cm
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B
16 m 10 cm
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C
16 m
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D
15 m 10 cm
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Solution
The correct option is B 16 m 10 cm Length of the ribbon = 15 m 25 cm
Sumitha runs short by 85 cm of ribbon.
The required length of ribbon
= 15 m 25 cm + 85 cm
mcm1525+85––––––––––15110
But, 110 cm = 100 cm + 10 cm
= 1 m 10 cm
Therefore,
15 m 110 cm
= 15 m + 1 m + 10 cm
= 16 m 10 cm