A person bought 8 Kg. of rice for certain rupees.He sold 3 Kg at 10% profit,3 Kgs with neither profit nor loss and 2 Kgs at 5% loss. What is profit or loss in this transaction ?
If 6 men and 8 boys can do a piece of work in 10 days while 26 men and 48 boys can do the same in 2 days, What time taken by 15 men and 20 boys in doing the same type of work ?