Question

Suman can type a 20 page document in 40 minutes, sita can type it in 30 minutes, and Sunita can type it in 24 minutes. Working together, how much time will it take them to type the same document?
a)5min
b)10min
c)20 min
d)18min​

Answer 1

Answer:

only 10 m

Step-by-step explanation:

no explanation

Answer 2

Answe

10 mins. IND. (option b)

Step-by-step explanation:

20/40 + 20/30 + 20/24 =20/x

1/40 + 1/30 + 1/24 = 1/x

12/120 = 1/x

12x = 120 => x = 10 mins