Question

Vimlesh runs a no profit shop and sells at 10% less than cost price. To earn profit, he weighs less and hence earns a profit of 5%. How much does he weigh (in grams) in place of 1kg?

Answer 1

857.14 gm

Step-by-step explanation:

let error be 'x' kg & cost per gm be Rs 1

1 kg = 1000 g

then actual cost price of sold quantity

= 1×(1000-x) = (1000 - x)

90% of 1000 = 105% of (1000 - x)

6/7 = (1000- x)/1000

7x = 1000 => x = 1000/7 gm

The weight he uses in place of 1kg

= 1000 - 1000/7 = 6000/7 gm

= 857.14 gm