Question

please answer fast.....​

Answer 1

Answer:

write two negative smaller than- 10

Answer 2

Step-by-step explanation:

let the speed of express train be x+11

and speed of passenger train be x

As per question.

132/(x+11) = 132 /x - 1

132/(x+11) = (132-x)/x

132x = (132-x)(x+11)

132x = 132x + 1452 - x² -11x

x²+11x-1452=0

x = [ - 11 + - sqrt{121 + 5808} / 2

x = -11+77/2 or -11-77/2

x = 33 or -44

speed cannot be negative

so x= 33

x+11=44