Question

2. The traffic lights at 2 different cross
roads change for every 40 seconds
and 32 seconds. At one time change
together. At what interval they
change together?
(A) 2 min. 40 sec.
(B) 1 min. 20 sec.
(C) 3 min. 20 sec.
(D) 2 min. 20 sec.​

Answer 1

Answer:

BB is the right answer 1 Mon 20 sec.

Answer 2

Answer:

1 min 20 sec

Step-by-step explanation:

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