Question

One litre of spirit which contains 10% of water is added to 3 litres of spirit containing 7%

Answer 1

Dear Student,

◆ Answer -

Water % = 7.75 %

● Explanation -

Amount of water is 1 litre solution -

x1 = 1 × 10/100

x1 = 0.1 L

Amount of water is 3 litre solution -

x1 = 3 × 7/100

x1 = 0.21 L

Percentage of water ia mixture is -

Water % = (x1+x2)/(1+3) × 100

Water % = (0.1+0.21)/(1+3) × 100

Water % = 0.31/4 × 100

Water % = 7.75 %

Hence, percentage of water in mixture is 7.75 %.

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Answer 2

Answer:

◆ Answer -

• Water % = 7.75 %

● Explanation -

Amount of water is 1 litre solution -

x1 = 1 × 10/100

x1 = 0.1 L

Amount of water is 3 litre solution -

x1 = 3 × 7/100

x1 = 0.21 L

Percentage of water ia mixture is -

Water % = (x1+x2)/(1+3) × 100

Water % = (0.1+0.21)/(1+3) × 100

Water % = 0.31/4 × 100

Water % = 7.75 %

Hence, percentage of water in mixture is 7.75 %.