A container is filled with a mixture of two liquids A and B in the ratio 3 : 4 . If 7 liters of liquid A is added to the container the new ratio of liquid A and B become 4 : 3. find the initial quantity of liquid A in the container :

Challenger App

Ratio & Proportion

No.1 PSC Learning App

★

★

★

★

★

1M+ Downloads

A container is filled with a mixture of two liquids A and B in the ratio 3 : 4 . If 7 liters of liquid A is added to the container the new ratio of liquid A and B become 4 : 3. find the initial quantity of liquid A in the container :

A12L

B6L

C9L

D15L

Answer:

C. 9L

Read Explanation:

initial ratio A : B = 3 : 4 = 3X : 4X if 7 l of liquid a is added to the container new ratio = 4 : 3 ⇒ (3X + 7)/4X = 4X/3X ⇒ 9X + 21 = 16X 7X = 21 ⇒ X = 21/7 = 3 initial quantity of liquid A in the container = 3X = 9L

Read more in App

Related Questions:

A certain sum is divided between A, B, C and D such that the ratio of the shares of A and B is 3 ∶ 4, that of B and C is 5 ∶ 6 and that of C and D is 9 ∶ 10. If the difference between the shares of A and C is Rs.3,240, then what is the share of D?

The monthly incomes of two friends Nirmal and Rakesh, are in the ratio 5 : 7 respectively and each of them saves ₹93000 every month. If the ratio of their monthly expenditure is 1 : 3, find the monthly income of Nirmal(in ₹).

If 81 : y :: y : 196, find the positive value of y.

The incomes of A and B are in the ratio 2:3 and their expenditure is in the ratio 1:2. If each saves Rs 2400, find A's income?

The ratio of the number of boys in schools A and of B is 5 ∶ 7 and the ratio of the total number of students in A and B is 3 ∶ 4. If the number of girls in B is equal to 66 $\frac{2}{3}$ % of the total students in B, then what is the ratio of the number of girls in A and B?