Question

Q.4)Jayahad three ribbons with her. The length of the green ribbon was 12m50cm.The red ribbon was 3/5
of the length of the green ribbon.The yellow ribbon was 2 1/2 times thered ribbon.What is the length of the yellow ribbon?

Answer 1

Answer:

Step-by-step explanation:

First convert 3/5 in length =

12m 50cm = 1250 cm

Now 3/5 of 1250 = 1250 X 3/5 = length of red ribbon in cm    

=> 250 X 3           ( 5 and 1250 get reduced to 1 and 250 respectively)

=> 750 cm

Now Length of yellow ribbon =

According to question = The yellow ribbon was 2 1/2 times the red ribbon

=> 2 1/2 in improper fraction = 5/2

=> 750 X 5/2 = length of yellow ribbon

=> 375 X 5             ( 2 and 750 get reduced to 1 and 375 respectively)

=> 1875 cm

Answer 2

$\overline{\underline{\boxed{\sf GIVEN \darr}}}$

Jaya had three ribbons with her.

The length of the green ribbon was 12 metres 50cm.

The red ribbon was 3/5 of the length of the green ribbon.

The yellow ribbon was 2 and half times the red ribbon.

What is the length of the yellow ribbon?

$\overline{\underline{\boxed{\sf SOLUTION \darr}}}$

Given that :

Length of the green ribbon = 12 m 50 cm

We know that :

1 cm = 1/100 m

50 cm = 50/100 m = 0.5 m

So, 12 m + 0.5 m = 12.5 m is the length of green ribbon

Now, according to the question :

⟼ Red ribbon is 3/5 of the green ribbon

⟼ Red ribbon = 3/5 × 12.5 m

⟼ Red ribbon = 3 × 2.5 m = 7.5 m

Hence, the length of the red ribbon is 7.5 m

Now, to find the yellow ribbon

Given Information is that yellow ribbon is 2½ times of the red ribbon

⟼ Yellow ribbon = 2½ × Red ribbon

⟼ Yellow ribbon = 5/2 × 7.5 m

⟼ Yellow ribbon = 18.75 m

∴ The length of the yellow ribbon is 18.75 m