Study the following graph to answer these questions :
Percent profit earned by two companies A & B over the years.
Profit = Income – Expenditure

Total expenditure of Company A & B together in 2001 was Rs. 13.5 lakhs. What was the total income of the two companies (in Rs. lakh) in that year?

How much interest will be received in 2.5 years at the rate of 4 percent simple interest of Rs. 3,680?

Unit digit in (264)¹⁰²+(264)¹⁰³ is:

What approximate value will come in place of the question mark (?) in the following questions?

324.995 x 15.98 ÷ 4.002 + 36.88 =? 

The area bounded by the lines x = 0, y = 0, x + y = 1, 2x + 3y = 6 (in square units) is 

A businessman’ earning by 25% in one year but decreases by 4% in the next. Going by this pattern, after 5 years, his total earning would be Rs. 72000. What is his present earning?

If 0.13 x p² = 13, then p is equal to