A box contains 720 marbles. The result of 20 marbles pulled at random from the box is given below. • 5 red marbles • 6 blue marbles • 3 green marbles • 4 black marbles • 2 yellow marbles Based on this information, how many yellow marbles could be expected in the box? A) 64 B) 72 C) 88 D) 100

Question

Rylan Valencia

Mathematics

30 July, 15:47

A box contains 720 marbles. The result of 20 marbles pulled at random from the box is given below. • 5 red marbles • 6 blue marbles • 3 green marbles • 4 black marbles • 2 yellow marbles Based on this information, how many yellow marbles could be expected in the box? A) 64 B) 72 C) 88 D) 100

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Answers (1)

Know the Answer?

Ciara Hutchinson · Answer 1

20 is the size of a random sample of 720 marbles.

Notice that 720=20*36

If there are 2 yellow marbles in the sample of 20 marbles, then we can expect:

2*36=72 yellow marbles in the box of 720 marbles

So, B) 72 is the correct answer