Question

3 seedlings
James
can plant
in 20 minutes. Lito can do the
same Job in 30 minutes.
If they work together, how long
can they plant 20 seedling.​

Answer 1

Answer:

Step-by-step explanation:

FOR LITO,

FOR 3 SEEDLINGS=30 MINUTES

FOR 1 SEEDLING=10 MINUTE

EFFICIENCY OF LITO=1/10

FOR JAMES,

FOR 3 SEEDLING=20 MINUTE

FOR 1 SEEDLING=20/3

EFFICIENCY=3/20

TOTAL EFFICIENCY=(1/10)+(3/20)

                                 =1/4

SO, FOR 20 MINUTES = 4*20

                                      =80 MINUTES

HOPE YOU UNDERSTOOD