Manoj brought some red pencil at9 for ₹ 10 and an equal number of blue pencil at 11 for ₹ 10.if all pencils are sold at 10 for ₹10.find the loss %or gain% .answer is 1

answer:

step-by-step explanation:

cost price of 9 red pencils and 11 blue pencils = 10 + 10 = ₹ 20

                          cost of 20 pencils                     = ₹ 20

                      selling price of   10 pencils             = ₹ 10

                      selling price of   20 pencils             = ₹ 20

no loss and no gain

8.75

how-to:

first, we need to find what we have to work with.

since i know that we have 7 (years) and 0.8 (inches), we can use these to solve and find the equation!

secondly, what you want to do, is see that we need to know how much growth out of the 0.8 inches he got in only 1 year, instead of 7 years.

let's try to divide.

7 ÷ 0.8 = 8.75