Math, asked by ulbangash85gmailcom, 3 months ago

2
Sam's mother bought a fish and 2 kg of prawns for $38.50
The fish cost $3.70 more than 1 kg of prawns
Find the cost of 1 kg of prawns​


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Answers

Answered by TheMoonlìghtPhoenix
38

Step-by-step explanation:

Correct Question:-

Sam's mother bought a fish and 2 kg of prawns for 38.50. The fish cost 3.70 more than 1 kg of prawns. Find the cost of 1 kg of fish.

ANSWER:-

Given that:-

  • The price of 2 kg prawns is $38.50
  • The 2 kg fish costs $3.70 more than 1 kg of the prawns.

To find:-

The price of 1 kg prawns.

Let's Do!

We are given a clue that "The fish cost $3.70 more than 1 kg of prawns".

Which means if we subtract $3.70 from 2 kg price, we will easily get the required result.

Indirectly, we get:-

Let the price of fish be x.

However, we can use Unitary method to find the cost of the prawns.

2kg of prawns give $38.50

So, 1 kg gives \dfrac{38.5}{3.7}

So, $ 10.405 is the cost of 1 kg prawn.

Now, the clue is going to be used.

So, $ 3.7 + $ 10.40 = x

Price of fish = $14.1

So, the price of fish is $14.1 . Hence the required answer.


Anonymous: amezing!
Arceus02: let the price of fish be x and 1kg prawn be y. Then weight of 2kg prawn = 2y. condition 1: x + 2y = 38.5 ----( 1 ) Condition 2: x - y = 3.7 ----( 2 ) Now ( 1 ) - (2), x + 2y - (x - y) = 38.5 - 3.7 => 3y = 34.8 => y = 11.6 = price of 1kg of prawn
IIDarvinceII: Great ;)
Anonymous: wow!
Anonymous: nice
Anonymous: Excellent! :D
BrainlyUnnati: Mind-blowing
Answered by Anonymous
72

Given that -

✠ Sam's mother bought a fish and 2 kg of prawns for $38.50

✠ The fish cost $3.70 more than 1 kg of prawns

To find -

✠ Cost of 1 kg prawn

Solution -

✠ Cost of 1 kg prawn = 34.8 $

Let's see what to do..!

As the question says that the fish cost $3.70 more than 1 kg of prawns means we have to subtract the digits. And it is also state that she bought 2 kgs of that food.

Henceforth, we get our final result very easily but indirectly,..!

➨ $38.50 - $3.70

➨ 34.8 $


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