If the ratio between the population of states A & B in year 2000 was 3 : 4 respectively, what was the respective ratio in 2001 ?

Instructions

Study the following graph carefully to answer these questions.
Per cent rise in population of two states from the previous year

Question 156

Solution

Let the population of State A in 2000 = $$300x$$

Population of State B in 2000 = $$400x$$

=> Population of State A in 2001 = $$\frac{145}{100} \times 300x = 435x$$

Population of State B in 2001 = $$\frac{135}{100} \times 400x = 540x$$

$$\therefore$$ Required ratio = $$\frac{435x}{540x}$$

= 29 : 36

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