Question

the cost of 10 pens is 500 2 pens are sold at
rupees 40 inch at what price should the remaining 10th be sold to as to gain 20% on the whole

Answer 1

Answer:

Rs 504

Step-by-step explanation:

cp of 10 pen =500

cp of 1 pen=500/10

                 =50

sp of 1 pen=40

sp of 2 pen =2*40

                   =80

remaining pen = 10 - 2= 8

to get 20 % profit by the remaining pen sp=?

sp = cp + p% of cp

     =500+20/100*500

      = 500+100

       = 600

sp of 8 pen = 600

sp of 1 pen =600 /8=75

so the remaining pen shold be sold at 75 each

Answer 2

Answer:

Rs 504

Step-by-step explanation:

cp of 10 pen =500

cp of 1 pen=500/10

                 =50

sp of 1 pen=40

sp of 2 pen =2*40

                   =80

remaining pen = 10 - 2= 8

to get 20 % profit by the remaining pen sp=?

sp = cp + p% of cp

     =500+20/100*500

      = 500+100

       = 600

sp of 8 pen = 600

sp of 1 pen =600 /8=75

so the remaining pen shold be sold at 75 each