Six cards numbered from 1 to 6 are placed in an empty bowl. First one card is drawn and then put back into the bowl; then a second card is drawn. If the cards are drawn at random and if the sum of the numbers on the cards is 8, what is the probability that one of the two cards drawn is numbered 5? ...

OG 13 #67 - Clarification

The question states "The 32 species that make up the dolphin family are closely related to whales and in fact include the animal known as the killer whale, which can grow to be 30 feet long and is famous for its aggressive hunting pods. I have a question about option E. E. includes the animal k...

I noticed this in the book as well, I suppose you could pick answer D based on the fact they don't have any solution other than miles that is a multiple of 5.

I have another question,

What is 1.99 rounded to the nearest tenth? Is it 2.0?

OG13 DS - Q 90

Is the number of seconds required to travel d1 feet at r1 feet per second greater than the number of seconds required to travel d2 feet at r2 feet per second? 1) d1 is 30 greater than d2 2) r1 is 30 greater than r2 -----------------my doubt---- I understand the reasoning provided in the OG but pleas...

Quadratics

What is X?

a) x = 4y - 4
b) xy = 8



[spoiler] Ans: E - relatively easy question, I want to know if the answer is E because of the two solutions X = -8 or X = 4[/spoiler]

Geometry - Easy data sufficiency

Please check the image for the question before reading.

I have a question about this relatively easy problem. For me to get the right answer I have to assume AE and BF are straight lines, that angle p + r = 180. Is this a bad assumption?

D