Question

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

Answer 1

The complete question is,

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

9 : 1

7 : 3

1 : 10

1 : 4

Given:

A jar contains black and white marbles.

To find:

If there are ten marbles in the jar,then which of the following could not be the ratio of black to white marbles​

Solution:

From given, we have, a jar contains black and white marbles

The total marble is 10

Option (A)  9 : 1

9 + 1 = 10

Option (B) 7 : 3

7 + 3 = 10

Option (C) 1 : 10

1 + 10 = 11 (does not satisfy the condition so that 10 is the answer)

Option (D) 1 : 4

2 × 1 + 2 × 4 = 10

Therefore, option (c) 1 : 10 cannot be the ratio of black to white marbles​