1.Two mercants sold a good of worth Rs 1000 from which one merchant A got profit from selling prices and merchant B got profit form cost price and profit for both is 25% what is difference amount.?

2.5lts solution bottle contains 4 lts of solution filled with 15 % of salt is mixed,1.5 lts solution is fell out and it is filled with water how much of salt content is present..?
3.Square of 21 cms and bull was tied at corner with rope of 7 cms how much area it can graze...
4.A and B can do a work 15 and 20 days respectively form which A as done half of the work and then b joind then it done 1/20th work how much many days in which a complted work which left by B.

• 1.
  Profit from selling price = 25% of 1000 = 250
  Profit from cost price = 1000 - 1000/1.25 = 200
  
  So Profit diff = 250 - 200 = 50.
  
  2.
  Content of salt in 4lt sol. = 15% * 4000 = 600gm
  Content of salt felt = 15% * 1500 = 225gm
  Total salt content left = 600 - 225 = 375gm
  
  3.
  Area bull can gaze = (1/4) * (22/7) * 7 * 7 = 38.5
  
  4.
  Let total work be x
  work done by A = x/2
  work done by B = x/20
  work left = x - (x/2) - (x/20) = 9*x/20
  A can complete x work in 15 days
  => A can complete left work = (15/x) * (9*x/20) = 6.75 days
• 13 years agoHelpfull: Yes(1) No(0)
• 1.
  profit for A= 1000*25/100=250 (as A get profit on sell porice)
  and profit of B=(1000-1000*100/125)=200 (as B get profit on cost price)
  so profit difference=250-200=50
  
  2.
  in 4 ltr mixture salt is=4*15/100=0.6 ltr
  and in 1.5ltr mixture salt is=1.5*15/100=0.225 ltr
  so now salt is =0.6-0.225=0.375 ltr
  
  3.
  as bull is tied on a corner so it can fraze only 1/4th of rope's circular area
  so bull can graze=(1/4)*(22/7)*(7^2)=22*7/4=38.5 square cm
  
  4.
  total work=1
  now A did=1/2
  and B did=1/20
  so work left=(1-1/2-1/20)=9/20
  A can do work in 15 days
  so in 1 day A can do 1/15th of the work
  so 9/20th wok a can do in more ((9/20)/(1/15) or (9*15/20) or 6.75 days
• 13 years agoHelpfull: Yes(0) No(0)