The following table gives the annual profit of a company (in lakh rupees) 2008-09 2009-10 2010-11 2011-12 2012-13590 620 656 690 726The period which has maximum percent increase in profit over previous period

2009-10
2010-11
2011-12
2012-13

The correct answer is (a).

The percent increase in profit over the previous period is calculated as follows:

Percent increase = (Profit in current period – Profit in previous period) / Profit in previous period * 100%

For the period 2009-10, the percent increase in profit is:

Percent increase = (620 – 590) / 590 * 100% = 5.13%

For the period 2010-11, the percent increase in profit is:

Percent increase = (656 – 620) / 620 * 100% = 6.15%

For the period 2011-12, the percent increase in profit is:

Percent increase = (690 – 656) / 656 * 100% = 5.07%

For the period 2012-13, the percent increase in profit is:

Percent increase = (726 – 690) / 690 * 100% = 5.61%

Therefore, the period with the maximum percent increase in profit is 2009-10.