Question

Mutthu is a dishonest shopkeeper who uses a 970 gms weighing stone for a kg stone. His cost price and selling price per unit kg of a
commodity are Rs. 30 and Rs. 36 respectively. What is his profit % if he sells 20 kg of the commodity?
a)20.3%
b) 21.6% c) 23.7%
d) 24.5%​

Answer 1

Answer:

c) 23.71%

Step-by-step explanation:

SP = 20 * 1000 * 36 /1000 = 720

CP = 20 * 970 * 30/1000 = 582

g = 720 - 582 = 138

g% = g *100/CP

g% = 138 * 100 / 582

g% = 23.71%

Note :

calculate CP on 976g & sp on 1000g

Answer 2

Answer:

23. 71%

Step-by-step explanation:

c.p of 1 kg = Rs 30 ,

970g = 970/1000 = 0.97 kg

c.p of 0.97kg = 0.97×30 = Rs 29.1

gain per kg =( 36 - 29.1)/29.1 *100

= 23.71%

So overall gain will be of 23. 71% .