Page 1 of 25
Calculation of Drug Dosages 12th Edition
By Sheila Ogden, Linda
Fluharty|9780323826228| All Chapters
1-19| LATEST
1. Convert 3/4 to a decimal.
A) 0.25 B) 0.50 C) 0.75 D) 1.00
Answer: C
*Rationale: 3 ÷ 4 = 0.75.*
2. Convert 0.625 to a fraction in lowest terms.
A) 5/8 B) 3/5 C) 5/6 D) 7/8
Answer: A
*Rationale: 0.625 = 625/1000 = 5/8 after dividing numerator
and denominator by 125.*
,Page 2 of 25
3. Add: 3 1/2 + 2 3/4 = ?
A) 5 1/4 B) 6 1/4 C) 5 3/4 D) 6 3/4
Answer: B
*Rationale: 3½ = 3.5, 2¾ = 2.75, sum = 6.25 = 6¼. Or
common denominator: 3 2/4 + 2 3/4 = 5 5/4 = 6 1/4.*
4. Solve: 2/3 ÷ 4/5 = ?
A) 5/6 B) 8/15 C) 10/12 D) 3/10
Answer: A
*Rationale: (2/3) × (5/4) = 10/12 = 5/6.*
5. What is 15% of 200?
A) 15 B) 30 C) 45 D) 60
Answer: B
*Rationale: 0.15 × 200 = 30.*
6. Express 2.5% as a decimal.
A) 0.025 B) 0.25 C) 2.5 D) 25.0
, Page 3 of 25
Answer: A
*Rationale: Percent means per hundred; 2.5% = 2.5/100 =
0.025.*
7. The ratio 4:12 simplified is:
A) 1:2 B) 1:3 C) 2:3 D) 4:1
Answer: B
Rationale: Divide both terms by 4 → 1:3.
8. Solve for x: x/5 = 12/15.
A) 2 B) 4 C) 6 D) 8
Answer: B
*Rationale: Cross-multiply: 15x = 60 → x = 4.*
9. Convert 1500 mL to liters.
A) 0.15 L B) 1.5 L C) 15 L D) 150 L
Answer: B
*Rationale: 1000 mL = 1 L, so 1500 mL = 1.5 L.*
Calculation of Drug Dosages 12th Edition
By Sheila Ogden, Linda
Fluharty|9780323826228| All Chapters
1-19| LATEST
1. Convert 3/4 to a decimal.
A) 0.25 B) 0.50 C) 0.75 D) 1.00
Answer: C
*Rationale: 3 ÷ 4 = 0.75.*
2. Convert 0.625 to a fraction in lowest terms.
A) 5/8 B) 3/5 C) 5/6 D) 7/8
Answer: A
*Rationale: 0.625 = 625/1000 = 5/8 after dividing numerator
and denominator by 125.*
,Page 2 of 25
3. Add: 3 1/2 + 2 3/4 = ?
A) 5 1/4 B) 6 1/4 C) 5 3/4 D) 6 3/4
Answer: B
*Rationale: 3½ = 3.5, 2¾ = 2.75, sum = 6.25 = 6¼. Or
common denominator: 3 2/4 + 2 3/4 = 5 5/4 = 6 1/4.*
4. Solve: 2/3 ÷ 4/5 = ?
A) 5/6 B) 8/15 C) 10/12 D) 3/10
Answer: A
*Rationale: (2/3) × (5/4) = 10/12 = 5/6.*
5. What is 15% of 200?
A) 15 B) 30 C) 45 D) 60
Answer: B
*Rationale: 0.15 × 200 = 30.*
6. Express 2.5% as a decimal.
A) 0.025 B) 0.25 C) 2.5 D) 25.0
, Page 3 of 25
Answer: A
*Rationale: Percent means per hundred; 2.5% = 2.5/100 =
0.025.*
7. The ratio 4:12 simplified is:
A) 1:2 B) 1:3 C) 2:3 D) 4:1
Answer: B
Rationale: Divide both terms by 4 → 1:3.
8. Solve for x: x/5 = 12/15.
A) 2 B) 4 C) 6 D) 8
Answer: B
*Rationale: Cross-multiply: 15x = 60 → x = 4.*
9. Convert 1500 mL to liters.
A) 0.15 L B) 1.5 L C) 15 L D) 150 L
Answer: B
*Rationale: 1000 mL = 1 L, so 1500 mL = 1.5 L.*
