In a shopping mall, a customer will get a scratch coupon after shopping for over a certain amount. The customer will get cashback between
₹1 to
₹100. Madhu is a regular customer to the shopping mall. The cashback she received over a period of six months is shown in Table 3.1.2.
How much percentage of total time, did she receive the cashback worth of ₹40 to ₹60?
how can this be solved?