Find the probability of selecting a black checker from a bag of 6 black and 4 red checkers replacing it and selecting another black?

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.

i think the answer is seven, for if i'm being useless °ω°

step-by-step explanation:

b. is true. hope this . happy