Question

How many four digits numbers can be formed
with digits 1,2,3,4,5,6 when it includes 1 and
2 necessarily (Rept. not allowed) ?
(A) 6
(B) 288
(C) 144
(D) 48​

Answer 1

Answer:

How many four digits numbers can be formed

with digits 1,2,3,4,5,6 when it includes 1 and

2 necessarily (Rept. not allowed) ?

(A) 6

(B) 288

(C) 144

(D) 48

Step-by-step explanation:

48

Answer 2

Step-by-step explanation:

60

.

.

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