Answer: Q

Explanation:
P = 1.25 x 1.4 x 1.1 = 1.925 = 92.5%
=> Q = 1.50 x 1.20 x 1.25 = 2.25 = 125%
=> R = 1.20 x 1.25 x 1.40 = 2.10 = 110%
=> S = 1.20 x 1.10 x 1.30 = 1.716 = 71.6%
=> The highest increase was for company Q.

Answer: 180

Explanation:
The sales of company R in 2003 was
=> 120 x 1.2 x 1.25 = 180 crores.

Answer: 28:13

Explanation:
Let the sales of P and S in 2000 be 200 and 100 respectively. Increase in sales of P from 2000 to 2004 = 200 x 1.2 x 1.25 x 1.4 x 1.1
=> Increase in sales of S from 2000 to 2004
=> = 200 x 1.25 x 1.2 x 1.1 x 1.3
=> Required ratio = 2000 x 1.4 / 100 x 1.3 = 28/13

Answer: Higher

Explanation:
As the expenses of company R in 2001 was 60% of its sales and it increased by 100% from 2001 to 2004, while the sales increased by 110% in the same period, we can conclude that the profits would have increased from 2001 to 2004

Answer:  78

Explanation:
increase in sales of Q from 2000 to 2004 = 1.1 x 1.5 x 1.2 x 1.25 = 2.475
=> 147.5%
=> Increase in sales of R from 2000 to 2004
=> = 1.05 x 1.2 x 1.25 x 1.4 = 2.205 = 120. 5%
=> Had the sales of Q and R in 2000 been 100 and 200 respectively, their sales in 2004 would hav been respectively 247.5 and 441.
=> Sales of company Q has to increase by
=> 441 – 247.5 / 247.5 x 100 = 193.5 / 247.5 x 100
78% in 2005 to match the sales figure of company R in 2004.