hard · Gre Quant
At a conference, the ratio of the number of economists to the number of statisticians is 5 to 3. After exactly 12 of the economists switch their registration to statistician, the ratio of economists to statisticians becomes 7 to 9.
How many people are attending the conference?
- 8
- 36
- 40
- 64
- 192
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