formula to find grams for specific price.

[Alearner]

1 kg dhal's price is 120 rupees. how much gram would be if a person wanted to buy dhal for 5 rupees?

I want to know the maths formula to find grams.

 

[Deleted member 4993]

1 kg dhal's price is 120 rupees. how much gram would be if a person wanted to buy dhal for 5 rupees?

I want to know the maths formula to find grams.

I'll do a similar but different problem for you.

24 rose cost 120 rupees. how many roses a person can buy for 35 rupees?

I do it the following way:

24 rose cost 120 rupees

1 rupee can buy (24/120 =) 1/5 rose.

35 rupees can buy (1/5 * 35 =) 7 roses.

Follow the same method. noting that 1 kg = 1000 gms.

You had posted a very similar problem in: https://www.freemathhelp.com/forum/threads/finding-grams-for-specific-rupees.121868/

Did you complete the problem there?

 

[Alearner]

hi Subhotosh Khan, your answer was very useful. thanks.

 

[HallsofIvy]

Since you ask for a formula, suppose the price were 1 kg for r rupees= r rupees per kg= r rupees/kg. What is the price for x grams? There are 1000 grams per kg so x grams is x/1000 kg and the price will be (x/1000)kg * r rupees/kg= xr/1000 rupees.