ASVAB (Armed Services Vocational Aptitude Battery)Mathematics Knowledge (MK)Easy
A medical specialist is preparing a saline solution. If they need to prepare 2.5 liters of a solution and each liter requires 9 grams of salt, how much salt is needed in total?
- A27.5 grams
- B22.5 grams
- C20.5 grams
- D25 grams
Show answer & explanationAnswer & explanation
Correct answer: B. 22.5 grams
To find the total amount of salt needed, multiply the amount of solution (2.5 liters) by the amount of salt per liter (9 grams/liter). So, 2.5 * 9 = 22.5 grams.
Why the other options are wrong
- A. This is an incorrect calculation, possibly 2.5 * 11.
- C. This is an incorrect calculation, possibly 2.5 * 8.2.
- D. This is an incorrect calculation, possibly 2.5 * 10.
Simple Multiplication
A basic arithmetic operation used to find the product of two numbers.
- Often used for 'per unit' calculations.
- Can involve decimals.
- Represents repeated addition.
Memory trick: Arithmetic's simple, just Add, Subtract, Multiply, Divide.