309× 29 = 8,961 is totally answer
it is 10...,,,,....,,,,,,,,,,?,,?????
Answer:
35.7 / 0.07 = 510
486.12 / 0.6 = 810.2
explanation-
I don't know how to explain but it's right!

Let the capacity of bus be x students
And van be y students, now ;
From the given statements we get two equations ~


multiply the equation (2) with 2 [ it won't change the values ]


Now, deduct equation (1) from equation (3)




Therefore each bus can carry (x) = 45 students
Now, plug the value of x in equation (1) to find y ~







Hence, each van can carry (y) = 17 students in total.
I think the answer is D because to find probability u have to count all outcomes