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A stone is randomly selected and the probability that the stone is black is ¼. Find the total number of stones in the box

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In a box, there are 9 blue, 6 white and some blackstones.

A

A

Statements:All red arewhite.

Some black arered.

No white is

Statements: All green areblue.

All blue are white

Concl

In three coloured boxes - Red, Green and Blue, 108 balls are

A box contains 4 red balls and 6 blackballs.

Three balls ar

Three balls ar

Three boxes contain respectively 3 white and 1 black, 2 whit

Ana wants to make a necklace with white, blue and redbeads.

Fact 1: Some pens don’twrite.

Fact 2: All blue penswrite.

Fact 2: All blue penswrite.

Fact 1

Some pens don't write

Fact 2

All blue pens wri

Some pens don't write

Fact 2

All blue pens wri

In a box, there are 8 red, 7 blue and 6 greenballs.

One bal

One bal