Instructions

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

Question 158

If population of state B in 1996 was 20 lakhs, what was the average population of the state in 1997 and 1998 ?

Solution

Population of State B in 1996 = 20 lakhs

=> Population in 1997 = $$\frac{120}{100} \times 20 = 24$$ lakhs

Population in 1998 = $$\frac{130}{100} \times 24 = 31.20$$ lakhs

$$\therefore$$ Required Average

= $$\frac{24 + 31.2}{2} = 27.6$$ lakhs

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