Question

5.
How many two letter words can be formed
using letters from the word SPACE, when
repetition of letters (i) is allowed, (ii) is not
allowed?​

Answer 1

(i)as,

ii) as ........

Answer 2

Answer:

(1). Repetition is allowed

5. × 5. × 5. = 125

(2). Repetition is not allowed

5. × 4 ×3 =. 60

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