The population of a city is 3,52,314. It increases annually at the rate of 15% per annum. What was its population 2 years ago?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 2,66,400.
According to the question;
Let the population two years ago be x.
⇒ x × (100 + 15)/100 × (100 + 15)/100 = 352314
⇒ x × 115/100 × 115/100 = 352314
⇒ x = (352314 × 100 × 100)/(115 × 115)
⇒ x = 266400