GMAC Data Insights Flashcards

A two-part analysis question: A company's costs increased 20% and revenue increased 25%. If original profit margin was 10%, did the absolute profit increase?

Answer: Yes, it increased

With proportional increases where revenue grows faster than costs, absolute profit increases.

In a GMAC data sufficiency-style question: Is integer n divisible by 6? Statement 1: n is divisible by 3. Statement 2: n is divisible by 2. Are the two statements together sufficient?

Answer: Yes, together they are sufficient

Divisibility by both 2 and 3 is necessary and sufficient for divisibility by 6.

A graphics interpretation question shows that Region A has 1,200 units sold and Region B has 800 units sold. What is the ratio of Region A to Region B sales?

Answer: 3:2

1,200:800 simplifies by dividing both by 400 to give 3:2.

A GMAC table shows 4 product lines with the following net margins: P1=8%, P2=12%, P3=5%, P4=15%. Which has the highest net margin?

Answer: P4

Comparing 8%, 12%, 5%, and 15%, the highest is P4 at 15%.

In a multi-source reasoning question, one email states a shipment arrives Friday; a memo says processing takes 2 business days. If Friday is Day 1 of processing, what is the earliest completion day?

Answer: Tuesday

Friday is Day 1 and Monday is Day 2 of business processing, so completion is end of Monday — earliest availability is Tuesday.

A two-part analysis asks: If the probability of Event A is 0.4 and Event B is 0.5, and they are independent, what is P(A and B)?

Answer: 0.20

For independent events, P(A and B) = P(A) × P(B) = 0.4 × 0.5 = 0.20.