A) A grocer bought 20 kg of sugar at Rs 70 per kg. He sold 15 kg of sugar at Rs 75 per kg and the remaining quantity at Rs 69 per kg. Find his profit or loss percent

5%

Step-by-step explanation:

A grocer bought 20 kg of sugar at Rs 70 per kg. The total amount spent will be: = 20kg × Rs70 = Rs1400

He sold 15 kg of sugar at Rs 75

per kg and the remaining quantity at Rs 69 per kg. This will be:

= (15 × Rs75) + (5 × Rs69)

= Rs1125 + Rs345

= Rs1470

Gain = Rs1470 - Rs1400 = Rs70

Percent gain = Gain/cost price × 100

= 70/1400 × 100

= 1/20 × 100

= 5%

The profit percent is 5%

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