Question

answer this question​

Answer 1

Step-by-step explanation:

Take inverse of aravind and ravi as work done by them in a day (important)

aravind=1/24

mani=1/36

aravind+mani+hari=1/8

1/24+1/36+1/x=1/8

lcm is 72x

3x+2x+72/72x=1/8

cross multiply or transpose

24x+16x+576=72x

32x=576

x=576/32

x=31/2(sorry if i got the wrong answer)

hari=15.5

Answer 2

1/24+1/36+1/x=1/8

1/x=1/8-1/24-1/36

1/x=(9-3-2)/72

1/x=4/72

x=72/4

x=18