Question

A kg of sugar costs 49.50.but the supplier gives 10gms less for every kg he sells.what is the approximate actual cost to the supplier(per kg)?

Answer 1

According to the supplier a kg costs Rs 49.50.

The supplier gives 10 grams less.

Converting this to kilograms we have :

10/1000 = 0.01 kg

The actual amount of sugar is therefore :

1 - 0.01 = 0.99 kgs

The actual cost is therefore:

49.50 per 0.99 kg

The cost per kg is therefore :

1/0.99 × 49.50 = 50

The actual cost of the sugar is therefore :

Rs 50 per kgs.

Answer 2

"Given:

The cost of 1 Kg of sugar = Rs 49.50

Solution:

1 kg = 1000 grams

Finding the cost of 1 gram:

Thus, the cost of 1000 grams of sugar = Rs 49.50  

$1\quad gram\quad =\quad \frac { 49.50 }{ 1000 }$

So, the cost of 1 gram of sugar = 0.0495

Finding the grams sold as 1 kg:

Since, the supplier gave “10 grams less” for “every kilogram” of sugar he sold.

So, 1000 - 10 = 990 grams

Finding the “cost of 990 grams”:

1 gram = 0.0495

990 grams = $990 \times 0.0495$= 49.005 (approximately 49)

Hence, Rs 49 is the actual cost of the sugar he sold."