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 chem

1.	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.	80
B.	60
C.	90
D.	20
Answer» C. 90

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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?

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