I bought a certain books for rs 480 if the book costed re 2 i would get 20 more books what was the cost of the book
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Here let the books you brought be x.
And now price. Be y
Then the new price is 2
So the books you got were just 20 more
That means
2(x+20)=480
But we know xy=480 so
2(x+20)=xy
You can further solve for x
Like
2x + 40 = 480
2x= 440
x=220
And y like
xy=480
y=480/220
That would be 2.181 (appropriate)
And now price. Be y
Then the new price is 2
So the books you got were just 20 more
That means
2(x+20)=480
But we know xy=480 so
2(x+20)=xy
You can further solve for x
Like
2x + 40 = 480
2x= 440
x=220
And y like
xy=480
y=480/220
That would be 2.181 (appropriate)
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