A trader bought 8 kg of rice at Rs 10 per kg While selling he uses false weights of 1600 gm instead ...........

Quantitative Aptitude ( CCS) Profit and loss

A trader bought 8 kg of rice at Rs 10 per kg. While selling he uses false weights of 1600 gm instead of 2 kg. What profit did he make by selling 8 kg of rice bought?

Rs 18

Rs 30

Rs 20

Rs 26

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Explanation:

He uses 1600 grams weight instead of 2 kg, means he makes a profit here.
That profit% = (2000-1600)/1600 * 100 = 25%
1 kg or 1000 gm costed him Rs 10.

So 1600 gms costs his Rs 16.
Now on selling each 1600 gms he makes 25% profit.

So profit = 25/100 * 16 = Rs 4
On selling each 1600 gms, he makes a profit of Rs 4,

so on selling 5 * 1600 = 8000 gms or 8 kg,

he makes a profit of 5 * 4 = Rs 20

Hence, option 3 is the correct answer.