Physics, asked by itzpappu, 3 months ago

Q1.Charmi cut a ribbon into 19 pieces . 7 of them are 11 cm each and the rest are 8 cm each .

What was the length of the ribbon at first ?

a) 173 cm b) 183 cm c) 193 cm d) 165 cm ​

Answers

Answered by FFG14
1

Answer:

✬ Length = 173 cm ✬

Given:

Total pieces of ribbon is 19.

7 pieces are of 11 cm.

Rest (12) pieces are of 8 cm.

To Find:

What was original the length of ribbon ?

Solution: Let original length of ribbon was x cm. Therefore,

Length of ribbons of 11 cm = No. of pieces(11)

Total length = 7(11)

77 cm....(1)

Length of ribbons of 8 cm = No. of pieces(8)

Total length = 12(8)

96 cm...(2)

A/q

Original ribbon = Equation 1 + Equation 2

x = Sum of length of ribbons (11 cm and 8 cm)

x = 77 + 96

x = 173 cm

Hence, original length of ribbon at first was 173 cm. (Option a is correct)

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