Question

Snehal has a red ribbon that is 80 cm long and a blue ribbon 2.20 m long. What is the ratio of the length of the red ribbon to that of the blue ribbon?

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Answer 1

$\sf \green{ Length \: of \: Red \: ribbon=80cm}$

1 metre = 100cm

Length of blue Ribbon :

$\sf \implies \: 2.20 × 100 = 220 cm$

Length of blue ribbon = 220 cm.

Ratio of red ribbon to that of blue ribbon :

$\sf \implies \dfrac{80}{220}$

$\sf \implies \: \dfrac{80 \div 20}{220 \div 20}$

$\boxed{ \sf \: \implies \: \dfrac{4}{11} }$

$\huge \: \sf \: Final Answer$

$\green { \huge \sf \implies \: 4 : 11}$

Answer 2

Answer:

The ratio of the length of the red ribbon to that of the blue ribbon is $4:11$.

Step-by-step explanation:

Given : Length of a red ribbon = $80$ cm

          length of blue ribbon = $2.20$ m

To find : What is the ratio of the length of the red ribbon to that of the blue ribbon?

Solution :

• It is given that the length of a red ribbon = $80$ cm

          length of blue ribbon = $2.20$ m

• We have to find the ratio of the length of the red ribbon to that of the blue ribbon.

• To find the ratio of any quantity, the units must be same.
• Here, we have to convert $2.20$ m into cm.

• We know that, $1$ m = $100$ cm

     $2.20$ m = $2*100+20$

               = $200+20$

               = $220$ cm

• Now,

    Ratio of the length of the red ribbon to that of the blue ribbon

                          = $\frac{80}{220}$

                          = $\frac{4}{11}$

• ∴ The ratio of the length of the red ribbon to that of the blue ribbon is $4:11$.    
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