According to the 1570 inscription at Pauri, the number of Diks recognized in the valley increased from 4 to 12 over a period of 20 years. What is the average annual increase in the number of Diks?
Answer
0.4 Diks per year
The correct answer is 0.4 Diks per year — State the average annual increase as 0.4 Diks per year.
Step-by-step solution
- Identify initial number of Diks: 4.
- Identify final number after 20 years: 12.
- Calculate the difference: 12 − 4 = 8 Diks.
- Divide the difference by the time span: 8 ÷ 20 = 0.4 Diks per year.
- State the average annual increase as 0.4 Diks per year.
Common mistake: Using the wrong difference or misreading the time period
Concept tested: Arithmetic from historical data
Published · How this solution was prepared and checked
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