medium · Gre Quant
A chemist has 40 liters of a solution that is 25% acid by volume. She wishes to dilute it to a 15% acid solution by adding pure water only. How many liters of pure water must she add? Round your answer to the nearest hundredth. Enter your answer as a decimal.
Sign up free to see the explanation and track your rank →
More Gre Quant practice
- DUAL-SCALE GRAPH: Helix Biotech — Headcount and Revenue per Employee, 2022–2026 Left axis:
- A store marks up a product by 20% over its cost, then during a sale discounts the marked p
- Solve for x: x - 5 = √(x - 3)
- Which of the following must be a factor of the integer n if n^2 is divisible by 72?
- Common information: n is an integer and 2ⁿ = k. Quantity A: 2^n+1 + 2^n+1 Quantity B: 2^n+
- 0 < a < b < 1. Quantity A: dfracab Quantity B: dfraca+1b+1
- A logistics firm reports monthly shipping cost and on-time delivery rate for one lane. The
- A fair six-sided die (faces 1 through 6) is rolled twice, and the two results are recorded