There are 20 counters in a box. 6 of the counters are red.
5 of the counters are green.
The rest of the counters are blue.

Lethna takes at random one of the counters from the box.

Find the probability that she takes a blue counter.

9/20

Step-by-step explanation:

I'm assuming you have to give the probability as a fraction :)

6 + 5 = 11

20 - 11 = 9

9/20

7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐