Question

a drum of kerosene oil is 3 by 4 full when 15 litres of oil is drawn from it it is 7 by 12 full find the total capacity of the drum

Answer 1

Answer:

90 liters

Step-by-step explanation:

Let the total capacity be

x

.

According to the question,

(

3

x

4

)

−

15

=

(

7

x

12

)

3

x

−

60

4

=

(

7

x

12

)

3

x

−

60

(

12

)

=

(

7

x

)

×

4

36

x

−

720

=

28

x

36

x

−

28

x

=

720

8

x

=

720

x

=

90