Reasoning Class 5 Possible Combinations

Asked by AKSHAY GURU VARADHARAJAN · SRI CHAITANYA TECHNO SCHOOL, JAYANTI NAGAR.

How many 2-digit numbers can be formed using the digits 2, 5, 7 and 9 if digits may be repeated?

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A 16
B 12
C 14
D 10

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How many 2-digit numbers can be formed using the digits 2, 5, 7 and 9 if digits may be repeated?

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