b) Ram Baral sold a pen to Kamala at 25% profit. Kamala sold the pain to Roshan at 10% loss. If Roshan paid Rs 72 to Kamala, how much did Ram pay to buy the pen? ( with full process for class 9)

there are no short passages to look at

y=mx+b

step-by-step explanation:

m slope

b y-intercept

use an equation of ratios to determine the amount of gas needed to fill the tank.

    0.2             0.8

  =    

288.75             x

                                                              231 gal

so, 0.2x = (0.8)(288.75 gal), and x = = 1155 gal.

                                                                0.2

it would take 1155 gal. to fill the tank.

the cost would be

1155 gal         $3

* = $3465   (answer)

      1           1 gal

hope this you

step-by-step explanation: