Question

Find the ratio - a. 30 min to 1.5 hours b. 40 cm to 1.5 m

Hi​

Answer 1

Answer:

Therefore, the ratio of 30 minutes to 1.5 hours is 1 : 3.

Step-by-step explanation:

hope it helps you

Answer 2

Answer:

a. 1 : 3     b. 4 : 15

Step-by-step explanation:

a. 30 minutes to 1.5 hours

We know that,  60 minutes = 1 hour

So, 30 minutes = 0.5 hour

Now,

30 minutes to 1.5 hours = 0.5 / 1.5

The HCF of 0.5 and 1.5 is 0.5

⇒ (0.5 × 1) / (0.5 × 3)

⇒   $\frac{1}{3}$ ⇒ 1 : 3

∴ The ratio of 30 minutes to 1.5 hours is 1 : 3.

b. 40 cm to 1.5 m

We know that, 100 cm = 1 m

So, 40 cm = 0.4 m

Now,

40 cm to 1.5 m = 0.4 / 1.5

⇒  $\frac{4}{15}$ ⇒ 4 : 15

∴ The ratio of 40 cm to 1.5 m is 4 : 15.