Percentage

From the bar chart, we compare the minutes spent by students X and Y on each day. We need to find the days where one student spent at least 10% more time than the other. For each day, we calculate the percentage difference using the formula: - For Monday: (X spent more)
- For Tuesday: (No 10% difference)
- For Wednesday: (No 10% difference)
- For Thursday: (No 10% difference)
- For Friday: (X spent more)
- For Saturday: (No 10% difference)
- For Sunday: (X spent more) The number of days with at least 10% more time spent by one student is 6 days: Monday, Friday, and Sunday.
Thus, the correct answer is (C) 6.
Final Answer: (C) 6

Let the population 2 years ago be . The population increases at a rate of 5% per annum, so after 2 years, the population becomes: Solving for : Thus, the population 2 years ago was 10,00,000. The correct answer is option (C).
Final Answer: (C) 10,00,000