Question

1) If the cost of bananas is increased by *2 per dozen, one can get one dozen
less bananas for *840. Find the original cost of one dozen bananas.
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Answer 1

Answer:

it is in the book of your std

Answer 2

Step-by-step explanation:

let the cost of one dozen of banana be x

840upon x -840upon x+1=2

840(1uponx-1 upon x+1)=2

1 upon x- 1 upon x+1=2 upon 840

now take LCM

you will get the equation

xsquare +x-420=0

x=20

cost of one dozen of bananas is 20