Question

How many numbers between 2000 and 3000 can be
formed with the digits 0, 1, 2, 3, 4, 5, 6, 7 (repeti-
tion of digits not allowed?
(b) 210
(c) 336
(d) 440
(a) 42​

Answer 1

Answer:

210

Step-by-step explanation:

210 numbers can be formed.

Answer 2

given digits,

0, 1, 2, 3, 4, 5, 6, 7

but the numbers between 2000 and 3000 will have 2 only in its thousands place

the remaining three places can be arranged in 7×6×5 ways= 210 ways

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