A man buys eggs at RS 9.60 per dozen and sell 20 eggs for RS 18 what is his gain or loss percen?

Percentage Gain = 12.5%

Step-by-step explanation:

Given

per dozen

per 20

Required

Determine the percentage gain or loss

First, we have to calculate the unit cost price and the unit selling price.

If a dozen costs 9.60

Then 1 costs

If he sells 20 for 18

Then he sells 1 for:

The percentage change is then calculated as:

Because the percentage change is positive, then he made a gain.

Hence:

Percentage Gain = 12.5%

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step-by-step explanation:

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the system of inequity is

step-by-step explanation:

from the given graph it is noticed that we have two related lines. one is solid and another is dashed.

if a line passing through two points, then the equation of line is

the solid line passing through the points (0,4) and (4,0).

the related equation of solid line is .

similarly, find the related equation of dashed line. the dashed liune passing through the points (0,0) and (3,1).

the related equation of dashed line is

from the given graph it is noticed that the point (0,1) lies on the shaded region, therefore the point (0,1) must be satisfied by the related equations.

check the related equations by the point (0,1).

this statement is true if the sign of inequality is < instead of equality. since it is an solid line therefore the sign of inequality will be . the required inequality is

similarly, check the second related equation.

it is a dashed line, so this statement is true if the sign of inequality is > . the required inequality is