A mixture of two chemicals X and Y is in the ratio 4:1. If there are 100 grams o

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Question: A mixture of two chemicals X and Y is in the ratio 4:1. If there are 100 grams of the mixture, how much of chemical Y is there?

Options:

Correct Answer: 20 grams

Solution:

Total parts = 4 + 1 = 5. Chemical Y = (1/5) * 100 = 20 grams.

A mixture of two chemicals X and Y is in the ratio 4:1. If there are 100 grams of the mixture, how much of chemical Y is there?

A mixture of two chemicals X and Y is in the ratio 4:1. If there are 100 grams of the mixture, how much of chemical Y is there?

Step 1: Understand the ratio of chemicals X and Y, which is 4:1.
Step 2: Add the parts of the ratio together: 4 (for X) + 1 (for Y) = 5 parts total.
Step 3: Determine how much one part is worth by dividing the total weight of the mixture (100 grams) by the total parts (5): 100 grams / 5 parts = 20 grams per part.
Step 4: Since chemical Y is 1 part, multiply the weight of one part (20 grams) by the number of parts for Y (1): 20 grams * 1 = 20 grams of chemical Y.

Ratio and Proportion – Understanding how to divide a total quantity based on given ratios.
Basic Arithmetic – Performing simple calculations to find parts of a whole.