Question

the ratio of weights of tin and zinc in an alloy is 2:5.How much zinc is there in 31.5 gram of alloy

Answer 1

GIVEN :-

» RATIO B/W TIN AND ZINC = 2:5

» SUM OF RATIO = 2+5 = 7

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» QUANTITY OF ZINC IN 31.5 GRAM OF ALLOY :-


$= > \frac{5}{7} \times 31.5 \\ \\ = > 5 \times 4.5 \\ \\ = > 22.5 \: \: gm$

___________[ANSWER]

Answer 2

Answer:

22.5g

Step-by-step explanation:

Weight of Tin =2x

Weight of Zinc =5x

Total weight of Alloy -

Weight of Tin+Weight of Zinc=31.5g

2x+5x=31.5g

7x=31.5g

x=4.5g

Hence,

Weight of Tin =2x=2×4.5=9g

Weight of Zinc =5x=5×4.5=22.5g

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