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A scientist prepares a mixture with two chemicals; chemical 1 and chemical 2 in proportion of 2 : 3 and makes a total concoction of 150 ml. How many ml of chemical 1 has been used?

A scientist prepares a mixture with two chemicals; chemical 1 and chemical 2 in proportion of 2 : 3 and makes a total concoction of 150 ml. How many ml of chemical 1 has been used? Correct Answer 60

Total quantity of mixture = 150 ml

Ratio of chemical 1 to chemical 2 = 2 : 3

Quantity of chemical 1 = 150 × = 60 ml

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