Question

Answer me this please.. (5)

Answer 1

Step-by-step explanation:

let the days taken by A be x daysand B be y days.

according to the question

x+y=4 .....equation 1

x=y-6 ..... equation 2

putting equation 2 in1

y-6+y=4

2y-6=4

2y=4+6

2y=10

y=5