Median of a grouped frequency table

The same question, asked 3 times: 18 Jan 2025 Tier II*, 20 Jan 2025 Tier II*, 18 Jan 2026 Tier II. Every wording below, oldest first.

Try each one first, then open its answer.

Question 1
18 Jan 2025 Tier II
11 $Find the median of the following data. (Rounded off to 2 decimal places.) Class interval 0-5 5-10 10-15 15-20 20-25 25-30 30-35 Frequency 3542765$
Tap an option to check your answer.
Question 2
20 Jan 2025 Tier II
23 $Find the median of the following data. Class interval 0 - 20 20 - 40 40 - 60 60 - 80 80 - 100 Frequency 91624154$
Tap an option to check your answer.
Question 3
18 Jan 2026 Tier II
22 $If the marks scored by the students in a class test out of 50 then, Find the Median of the following data: Marks Frequency 0-10 5 10-20 8 20-30 6 30-40 6 40-50 5$
Tap an option to check your answer.

Question 1