Question

an alloy of tin and zinc consists of 45% tin and rest of zinc. Find the weight of tin in the alloy if the weight of zinc is 90kg.

Answer 1

Answer:

73.64 kg of tin

Step-by-step explanation:

Alloy consists of tin and zinc

Percentage of tin = 45%

Find the percentage of zinc:

Percentage of zinc = 100 - 45 = 55%

Find the amount of tin:

zinc = 90kg (Given)

zinc = 55%

55% = 90 kg

1% = 90 ÷ 55 = 18/11 kg

45% = 18/11 x 45 = 73.64 kg

Answer: There is 73.64 kg of tin.

Answer 2

Answer : $\bold{Tin \: = 73.63 \: kg}$


$\bold{Explanation :}$

Given :

Percentage of tin = 45% .

weight of zinc = 90 kg.


Finding Percentage of zinc -

Given - iron = 45%

100 - 45 = 55 %

Percentage of zinc = 55%


Finding the weight of tin in the alloy -

Given - weight of zinc = 90 kg

55 % = 90 kg zinc

45 % = ?


$\dfrac{45 \times 90}{55}$


$\dfrac{4050}{55} = 73.63$

Weight of the tin in the alloy = 73.63 kg


Hence :

$\bold{Answer : weight \: of \: tin \: = \: 73.63 \: kg}$