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### Question

A tank is (2/9)^{th} filled with water. When 64 liters of water are added, it becomes (2/5)^{th} filled. What is the capacity of the tank?

**A**

360 liters.

**B**

370 liters.

**C**

380 liters.

**D**

390 liters.

**Soln.**

**Ans: a**

Let x be the capacity in liters. ${2x}/9 + 64 = {2x}/5$. Solving, x = 360 liters.