By selling a mobile set for 12420 a shopkeeper gain 15% profit how much percentage of profit would he gain by selling for rs12096

answer:

 we know that When goods sold at Rs240 ,a merchant gains 25%

so cost price = s.p ×100/100 + profit

                     = 240 ×100 /125

                      =>  192 rs.

 percentage would he gain by selling it fo Rs216 

=>  profit =  s.p -c.p

                   = 216 - 192

                    = 24 rs

profit%= profit ×100/c.p

             = 24 × 100 / 192

             =>  12.5 %

Step-by-step explanation:

three-fourths of an hour

36÷48=0.75

0.75=

both equations and proportions are better.