P, Q, R, * are to give lecture to an audience. The organizer can arrange the order of their presentation in :

Question 1

(a) 256 ways

(b) 24 ways

(c) 4 ways

(d) 12 ways

Question 2

Correct option (b) 24 ways

Explanation:

Since there are 4 people P, Q, R, * who are to give lecture to an audience.

∴ The number of ways in which their presentation can be arranged

= 4 ! = 4 × 3 × 2 × 1 = 24.

kratos · Answer 1 · 2020-02-28T03:05:33+0000

Correct option (b) 24 ways

Explanation:

Since there are 4 people P, Q, R, * who are to give lecture to an audience.

∴ The number of ways in which their presentation can be arranged

= 4 ! = 4 × 3 × 2 × 1 = 24.

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