Question

A Kisi kam ko 8 din me B Usi kam ko 12 Din Mein and C usi Kam ko 20 Dil Mein karte hain yadi Teri ek sath kare to Kam Kitne Dino Mein samapt Ho Jayega

Answer 1

$\bf \: Hello \: there \:$

A Completes a work in one day = 1/8 part

B Completes a work in one day = 1/12 part

C Completes a work in one day = 1/20 part

if these three do the work together then
work will be done in = 1÷ [ 1/8 + 1/12+ 1/20 ]

= 1 ÷ ( 31 / 120 )

= 120 /31 days

= 3.87 days


Hope that helps you ☺