Grade 7 Ratios, Proportions and Percentages Practice Test

Correct answer: A

The correct answer is $0.35$.

1. Identify the ratio or percent relationship: Determine whether the problem asks for an equivalent ratio, a unit rate, a proportion, a percent, a scale, or percent change.
2. Set up the relationship: Divide by 100 or move the decimal point two places left: $35\%=0.35$.
3. Check the scale and units: Confirm that corresponding quantities are in the same order, units are consistent, and the result is reasonable.

Correct answer: B

The correct answer is $62\%$.

1. Identify the ratio or percent relationship: Determine whether the problem asks for an equivalent ratio, a unit rate, a proportion, a percent, a scale, or percent change.
2. Set up the relationship: Multiply the decimal by 100: $0.62\cdot100=62\%$.
3. Check the scale and units: Confirm that corresponding quantities are in the same order, units are consistent, and the result is reasonable.

Correct answer: C

The correct answer is $60\%$.

1. Identify the ratio or percent relationship: Determine whether the problem asks for an equivalent ratio, a unit rate, a proportion, a percent, a scale, or percent change.
2. Set up the relationship: $\frac{3}{5}=0.6=60\%$.
3. Check the scale and units: Confirm that corresponding quantities are in the same order, units are consistent, and the result is reasonable.

Correct answer: D

The correct answer is $12$.

1. Identify the ratio or percent relationship: Determine whether the problem asks for an equivalent ratio, a unit rate, a proportion, a percent, a scale, or percent change.
2. Set up the relationship: $15\%=0.15$, so $0.15\cdot80=12$.
3. Check the scale and units: Confirm that corresponding quantities are in the same order, units are consistent, and the result is reasonable.

Correct answer: A

The correct answer is $16$.

1. Identify the ratio or percent relationship: Determine whether the problem asks for an equivalent ratio, a unit rate, a proportion, a percent, a scale, or percent change.
2. Set up the relationship: $25\%=\frac{1}{4}$, so $64\div4=16$.
3. Check the scale and units: Confirm that corresponding quantities are in the same order, units are consistent, and the result is reasonable.

Correct answer: B

The correct answer is $30\%$.

1. Identify the ratio or percent relationship: Determine whether the problem asks for an equivalent ratio, a unit rate, a proportion, a percent, a scale, or percent change.
2. Set up the relationship: Set up $\frac{18}{60}=0.3=30\%$.
3. Check the scale and units: Confirm that corresponding quantities are in the same order, units are consistent, and the result is reasonable.

Correct answer: C

The correct answer is $60$.

1. Identify the ratio or percent relationship: Determine whether the problem asks for an equivalent ratio, a unit rate, a proportion, a percent, a scale, or percent change.
2. Set up the relationship: Let $n$ be the number. Then $0.75n=45$, so $n=45\div0.75=60$.
3. Check the scale and units: Confirm that corresponding quantities are in the same order, units are consistent, and the result is reasonable.

Correct answer: D

The correct answer is $5$.

1. Identify the ratio or percent relationship: Determine whether the problem asks for an equivalent ratio, a unit rate, a proportion, a percent, a scale, or percent change.
2. Set up the relationship: $2.5\%=0.025$, so $0.025\cdot200=5$.
3. Check the scale and units: Confirm that corresponding quantities are in the same order, units are consistent, and the result is reasonable.

Correct answer: A

The correct answer is $40\%$.

1. Identify the ratio or percent relationship: Determine whether the problem asks for an equivalent ratio, a unit rate, a proportion, a percent, a scale, or percent change.
2. Set up the relationship: $40\%=0.40$ and $\frac{3}{8}=0.375$, so $40\%$ is greater.
3. Check the scale and units: Confirm that corresponding quantities are in the same order, units are consistent, and the result is reasonable.

Correct answer: B

The correct answer is $12.5\%$.

1. Identify the ratio or percent relationship: Determine whether the problem asks for an equivalent ratio, a unit rate, a proportion, a percent, a scale, or percent change.
2. Set up the relationship: Multiply by 100: $0.125\cdot100=12.5\%$.
3. Check the scale and units: Confirm that corresponding quantities are in the same order, units are consistent, and the result is reasonable.