Question

Write the mean and extreme terms in the following ratios and check whether they
are in proportion.
(i) 78 litres is to 130 litre and 12 bottles is to 20 bottles
(ii) 400 gm is to 50 gm and 25 rupees is to
625 rupees

Answer 1

Answer:

i) They are in proportion.

ii) They are not in proportion.

Step-by-step explanation:

To find : Write the mean and extreme terms in the following ratios and check whether they  are in proportion ?

Solution :

(i) 78 litres is to 130 litre and 12 bottles is to 20 bottles

i.e. $\frac{78}{130}=\frac{12}{20}$

If they are in proportion then $78\times 20=12\times 130$

$78\times 20=1560$

$12\times 130=1560$

They are in proportion.

(ii) 400 gm is to 50 gm and 25 rupees is to  625 rupees

i.e. $\frac{400}{50}=\frac{25}{625}$

If they are in proportion then $400\times625=25\times 50$

$400\times625=250000$

$25\times 50=1250$

They are not in proportion.

Answer 2

Answer:

thanks for saying pinquancaro

Step-by-step explanation:

thanks sooo much