138. A question paper contains 8 questions ,each having an alternative. The number of ways an examinee can answer three or more questions is
a) 7200
b) 6372
c) 6400
d) none of these

3rd box is the answer

step-by-step explanation:

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.

angle efh= angle egh