10. Aman wants to use ribbon strips to decorate his house for his father's birthday. For
this he wants 10 ribbons of length 0.5 m each and 100 ribbons of length 0.45 m each.
What is the total length of ribbon that he needs?
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Answer:
the ans is 50 m
= total length of the ribbon = (10×0.5) + (100×0.45)
= ( 5) + ( 45 )
= 50
therefore, the total length of the ribbon he needs is 50m
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