Question

Tanmay has a red ribbon, which is 120 cm long. It is 12/20 of length of blue ribbon . Green ribbon is 3/5 of total length of red and blue ribbon. What is tje the length of green ribbon

Answer 1

192 cm.

Step-by-step explanation:

Given,

$length \: of \: red \: ribbon \: = 120cm \\ which \: is \: (12 \div 20) \: of \: blue \: ribbon \\ let \: length \: of \: blue \: ribbon \: be \: x \\ = > (12 \div 20) \times x = 120 \\ = > x = 120 \div (12 \div 20) \\ x = 120 \times (20 \div 12) \\ x = 200cm \\ = > \: length \: of \: blue \: ribbon \: = 200cm \\ length \: of \: green \: ribbon \: = (3 \div 5) \: \\ of \: (length \: of \: red + blue \: ribbon) \\ let \: the \: length \: of \: green \: ribbon \: be \: y \\ = > y = (3 \div 5) \times (120 + 200) \\ = > y = 192cm \\ = > length \: of \: green \: ribbon \: = 192cm$

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Answer 2

Given :- Tanmay has a red ribbon, which is 120 cm long. It is 12/20 of length of blue ribbon . Green ribbon is 3/5 of total length of red and blue ribbon.

To Find :- What is the the length of green ribbon ?

Solution :-

→ Length of red ribbon = 120 cm

now,

→ Length of red ribbon = (12/20) of Length of blue ribbon

→ 120 cm = (12/20) of Length of blue ribbon

→ Length of blue ribbon = 120 × (20/12)

→ Length of blue ribbon = 200 cm

So,

→ Total length of red and blue ribbon = 120 + 200 = 320 cm

then,

→ Length of green ribbon = (3/5) of Total length of red and blue ribbon

→ Length of green ribbon = (3/5) of 320

→ Length of green ribbon = (3/5) × 320

→ Length of green ribbon = 3 × 64

→ Length of green ribbon = 192 cm (Ans) .

Therefore, the Length of green ribbon is equal to 192 cm .

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