An item was sold at loss of 20%. had it been sold for rs3000 more then the profit would have been 10%. what is the cost price of the item

10000

Step-by-step explanation:

Assumed that the cost price of the item is x.

It was sold at a loss of 20%:

therefore the price sold was 0.8x

If it was sold at a profit of 10%:

the price sold would have been 1.1x

Since the difference in price is 3000:

1.1x - 0.8x = 3000

0.3x = 3000

x = 10000

option c) graph of line going through 1, 4 and 3, 10

step-by-step explanation:

let y equal to margo's coin collection

let x equal to number of years

at the begining x=0, y=1 → point=(x,y)→point=(0,1)

she adds 3 coins per year, then y=1+3x

at x=1, y=1+3(1)=1+3→y=4→point=(x,y)→point=(1,4)

at x=3, y=1+3(3)=1+9→y=10→point=(x,y)→point=(3,10)

the graph of line going through (1, 4) and (3, 10), then the option c is the correct.