Question

the suger is sold at रू5.4 per kg at a loss of 10% at what price should be it be sold per kg to earn a profitof 20%​

Answer 1

Step-by-step explanation:

90% (which is 100%-10%, implying the loss) is = 5.4kg 

so 5.4kg/90% = 6kg* which is at 100% 

a 20% profit is found at 120%, thus 6kg x 120%** = 6×1.2=7.2kg

[Calculation:

*5.4×100/90=6 (6 kg)

**6×120/100]

Answer 2

Answer:

7.2Rs

Step-by-step explanation:

selling price =5.4 Rs

cost price =?

loss=10%

$sp = ((100 - loss\%) \div 100) \ \times cp$

5.4=((100-10)/100)*cp

5.4=90/100*cp

5.4/0.9=cp

cp=6Rs

....

now sp =?

$sp = ((100 + profit\%) \div 100) \times b \\ cp$

sp=((100+20)/100)*6

sp=120*6/100

....

sp=7.2Rs