Question

1. David can pack 132 cartons of jars in one day and
his assistant Mark works one quarter as fast as
David does. How many days would it take both of
them working together to pack 660 cartons?
A) 3
BJ 4 C) 5
D) 8
E) 10
2. Refer to Question 1. How many days would it take
if each of them works alone on alternate days?​

Answer 1

Answer:

david in 1 day = 132

mark 1/4 than david

132/4

33

mark van pack 33 cartoons in a day

both = 132 + 33

= 165

165 x ( x) = 660

x = 660/132

5 days

bth can pack 660 cartoons in 5 days

Step-by-step explanation:

if they work alternate

david = 132 x (x) = 660

= x = 660/132

= 4days

david can do it in 4 days

mark = 33x (x) = 660

= x = 660/33

x= 20days

mark need 20 dys to do it

Answer 2

Answer:

B

Step-by-step explanation:

4 days

As speed of mark would be 33 cartons per day so both of them can pack 165 cartons per day. this implies that they will pacl 660 cartkns in 4 days