Question

Ethan, and Andrew have to give presentations, not
necessarily in the same order.
I. Andrew either delivers his presentation at the start or at the end

II. Jacob delivers his presentation immediately after ethan

III. There are exactly three presentations between William and liam

IV. Alexander is the second person to deliver his presentation

Q 19) How many different possible combinations of scheduling are possible'

A. 3
B.2
C.4
D.1

Q 20 Who delivers his presentation immediately after William

A.Andrew
B. Either Alexander or Andrew
C.Jacob
D.Alexander

Answer 1

19. option A

20. Option C

Answer 2

Answer:

(19) option is (B) 2.

(20) option is (B) Either Alexander or Andrew.

Step-by-step explanation:

I think question is - " Six persons Jacob, William, Liam, Alexander

Ethan and Andrew have to give presentations, not

necessarily in the same order.

I. Andrew either delivers his presentation at the start or at the end

II. Jacob delivers his presentation immediately after Ethan

III. There are exactly three presentations between William and Liam

IV. Alexander is the second person to deliver his presentation "

(19)

As per the information given, arrangements made to order these 6 persons can be-

William, Alex, Ethan, Jacob, Liam, Andrew.

Liam, Alex, Ethan, Jacob, William, Andrew.

So, the correct option is (B)- 2

(20)

According to the first arrangement, ALEX delivers his presentation after William.

According to the second arrangement, ANDREW delivers his presentation after William.

So, the correct option is (B)- Either Alexander or Andrew.