Instructions
Study the following graph carefully to answer these questions.
Per cent rise in population of two states from the previous year
Question 156
If the ratio between the population of states A & B in year 2000 was 3 : 4 respectively, what was the respective ratio in 2001 ?
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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