Question

3.9kg bears the same ratio to a certain quantity as 13 litres bears to 6 liters. Find the quantity.

Answer 1

Answer:

the quantity = 1.8 kg

Step-by-step explanation:

3.9kg bears the same ratio to a certain quantity as 13 litres bears to 6 liters.

Let say Quantity is  Q kg

Then

as per question

3.9 : Q :: 13: 6

=> 3.9/Q = 13/6

=> Q = 3.9 * 6 /13

=> Q = 0.3 * 6

=> Q = 1.8

3.9kg bears the same ratio to 1.8 kg as 13 litres bears to 6 liters.

Answer 2

The answer is

Let the quantity be x

Now we have 3.9, x, 13 and 6.

(imagine 3.9 as a, x as b, 13 as c and 6 as d. The values of a * d is equal to b *c

. So swap their places as shown below)

3.9*6 =13*x

23.4 = 13*x

23.4 / 13 =x

1.8 = x