Study the given graph and answer the question that follows
In the year 2019, if the imports increased by the same percentage as that in 2018 over its previous year, then what was the amount (in Rs. crores) of the imports in the year 2019?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 506.25
Increase% of imports of the year 2018 = (450 - 400)/450 × 100
⇒ 100/9 %
Let the imports in the year 2019 be = x
According to question; Percentage increase of imports in 2019 = Percentage increase of imports in 2018
⇒ Increase% of imports in 2019 = 100/9 %
⇒ (x - Imports in 2018)/x ×100 = 100/9
⇒ (x - 450)/x = 1/9
⇒x = 9 × (x - 450)
⇒ x - 9x = - 9 × 450
⇒ - 8y = - 9 × 450
⇒ x = 9 × 450/8
⇒ x = 506.25