Interest received by A from B = 10% of half of Rs.50000 = 10% of Rs. 25000 = Rs.2500.

Amount received by A per annum for being a working partner = 1500 x 12 = Rs.18000

Let 'P' be the part of the remaining profit that A receives as his share.

So,total income of A = (Rs.2500 + Rs.18000 + Rs. P )

Total income of B = only his share from the remaining profit = 'P', as  A and B share the remaining profit equally.

We know that income of A = Twice the income of B 

So, (2500 + 18000 + P ) = 2(P)

P = 20500

Thus, the total profit = 2P + Rs.18000

= 2(20500) + 18000 = Rs.59000.

As both A and B invest the same amounts, the ratio of their profits at the end of the year is equal to the ratio of the time periods for which they have invested.

Thus, the required ratio of their profits = A : B = 8 : 12 = 2 : 3.

Hence, share of A in the total profit = 2 x 25000/5 = Rs.10000

Similarly, share of B in the total profit = 3 x 25000/5 = Rs.15000

SP = Rs.800 ; Profit = 25%

 CP = SP x 100100+P% = 800 x 100100+25 = 640

 Now, CP = Rs.640

Loss = 25% = 25% of Rs.640 = Rs.160

Thus, SP = CP - Loss = Rs.640 - Rs.160 = Rs.480

SP of first article = Rs.1000

Profit = 20%

 CP = SP x 100100+P% = Rs. 25003

SP of Second Article = Rs.1000

 Loss = 20%

 CP = SP x 100100-L% = Rs. 1250

So, Total SP = Rs.2000; Total CP = Rs.6250/3

As the CP is more than SP, he makes a loss.

Loss = CP - SP = (6250/3) - 2000 = Rs.(250/3)

So, Loss Percent = Lossx100/CP = 4%

I assume that by exercises you mean stretches. If not, if you mean other exercises, then Science of Sports Training will answer your question. Concerning stretches?do dynamic stretches similar to the movements in your sport. Do those isometric stretches that resemble positions at which your range of motion is less than required in your sport. For example, stretches 1 and 3 on pages 68 and 69 in Stretching Scientifically would help for baseball pitchers. Gymnasts or kickboxers may pick any stretch from pages 70?72, plus any stretch from page 74 and any hamstring stretch from page 75. Stretches you do for the front of the thigh and for the hamstring you can later replace with front splits (page 76 in Stretching Scientifically) as your flexibility improves. You can do relaxed stretches similar to your isometric stretches or whichever ones stretch your tensed muscles.

The proper sequence of stretches in a workout is: dynamic, static active, isometric, relaxed. You do not have to do all these types of stretches in a workout. You can skip the ones that you do not need but do not alter the order.