Question

4. A chocolate bar weighs 8.7 grams. Find the cost and the weight of 115
chocolate bars if each bar costs 30.2.

5. A kilogram of beef costs P 180.90. How much do 95 kilograms of beef
cost?

Answer plsss
The correct answer ​

Answer 1

Answer:

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Answer 2

Given:

4. A chocolate bar weighs 8.7 grams.  

5. A kilogram of beef costs Rs180.90.

To Find:

4. Find the cost and the weight of 115  chocolate bars if each bar costs Rs30.2.

5. How much do 95 kilograms of beef  cost?

Solution:

(4) A chocolate bar weighs 8.7 grams, we need to find the cost and weight of 115 chocolate bars if each bar costs Rs30.2

Let us find the cost of 115 bars first if each bar cost Rs30.2 then 115 bar will cost

$Cost=115*30.2\\=3473$

so the cost of 115 bar is Rs3473

Now let us find the weight of 115 bars, if the weight of 1 bar is 8.7gm then the weight of 115 bar will be

$W=115*8.7\\=1000.5$

Hence, the cost and weight of 115 bars are Rs3473 and 1000.5gm respectively.

(5) A kg of beef costs Rs180.9 then how much would 95kgs of beef cost, we would simply the cost of 1kg of beef with the weight of beef required

$Cost=95*180.9\\=17185.5$

Hence, the cost of 95kg of beef will be Rs.17785.5