A jar contains black and white marbles. If there are 25 marbles in the jar, then which of the following could not be the ratio of black to white marbles?

\frac{12}{13}

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\frac{11}{14}

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\frac{1}{10}

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\frac{8}{17}

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Solution

The correct option is C $\frac{1}{10}$
In this Question the sum of ratio of marbles must be 25.
A. $12 + 13 = 25$
B. $11 + 14 = 25$
C. $1 + 10 = 11$
D. $8 + 17 = 25$

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Q. In a set of

216

marbles, there are

x

black marbles and

y

white marbles. If the number of white marbles is

7

times the number of black marbles, how many black marbles are there?

Q. A jar contains 3 red marbles, 7 green marbles and 10 white marbles. If a marble is drawn from the jar at random, what is the probability that this marble is white?

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A jar contains black and white marbles. If there are 25 marbles in the jar, then which of the following could not be the ratio of black to white marbles?

The correct option is C 110In this Question the sum of ratio of marbles must be 25. A. 12+13=25B. 11+14=25C. 1+10=11D. 8+17=25

The correct option is C $\frac{1}{10}$
In this Question the sum of ratio of marbles must be 25.
A. $12 + 13 = 25$
B. $11 + 14 = 25$
C. $1 + 10 = 11$
D. $8 + 17 = 25$