At what price should Shyam sell a pair of shoes which cost him Rs. 1200 so as to gain 12% after allowing a discount of 16%?

Well its a good question .....And Iam trying but couldnt done well u please write the solution for this que.

the average age of 8 persons in a committee is increased by 2 years when two men aged 35 years and 45 years are substituted by two women. the average age of these two women is

let x be the total average and y be the age of women x+2=[8x-(45+35)+y]/8 8x+16=8x-80+y y=96 average of women=96/2=48..