Question

7. A can complete a certain work in 4 minutes. B in 5 minutes C in 6 minutes D in 10 minutes
and E in 12 minutes. The average number of units of work completed by them per minute will
be
1) 0.16
2) 0.40
3)0 80
4) None of these​

Answer 1

Answer:

none of these

Step-by-step explanation:

(4+5+6+10+12)/5

=37/5

=7.4