Metric to household volume

HESI A2
Basic Math Skills
Multiple choice
Difficulty 2 of 5

Question

A paint-mixing guide lists 90 mL of water. Using 15 mL per tablespoon, how many tablespoons is this?

6✓ Correct

Correct. Divide by the conversion factor: 90 ÷ 15 = 6.
60✗ Incorrect

Incorrect. This answer misplaces the decimal point.
75✗ Incorrect

Incorrect. This answer subtracts the factor instead of dividing.
1,350✗ Incorrect

Incorrect. This answer multiplies by the conversion factor instead of dividing.

Answer

A. 6

Rationale

The requested unit is larger than a milliliter. Divide the total volume by the approximate volume represented by each tablespoon.

Worked solution: Divide by the conversion factor: 90 ÷ 15 = 6.

RememberTo convert mL to tablespoons, divide by the stated mL per tablespoon.

Sources

Sources marked “Adapted from” are licensed under CC BY 4.0. We changed the material: its facts are rewritten into an original question, answer options and rationale. The original authors and publishers do not endorse SwipeExam.

Adapted from Open RN Nursing Skills, 2nd edition: Chapter 5 Math Calculations Open RN (Chippewa Valley Technical College) · License: CC BY 4.0 · Retrieved November 2, 2026 · EQUIVALENCIES › Household Equivalencies · 2nd edition, 2023
Metric Kitchen: Cooking Measurement Equivalencies National Institute of Standards and Technology · License: US government work (public domain) · Retrieved November 4, 2026 · Metric Kitchen: Cooking Measurement Equivalencies · page updated 2026-04-29
Lactulose (lactulose) oral prescribing information, APOZEAL PHARMACEUTICALS INC U.S. Food and Drug Administration (openFDA) · License: CC0 1.0 · Retrieved November 2, 2026 · Dosage and administration · effective_time 20260723

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