Question

please answer fastly with proper method​

Answer 1

Answer:

Factors of 5 = 1, 5 Factors

of 15 = 1, 3, 5, 15 Factors

of 25 = 1, 5, 25

Common factors of 5, 15 and 25 = 1,5

Answer 2

Answer:

15×68

( 10+5) (60+8)

(x+a) (x+b)=x+ab

x=10 a=5 p=8

10+5×60+8

600+600+40

1240