How many two-digit numbers can be formed using the digits 8, 3, 7 and 1 without repetition? About the author Savannah
Answer: 12 Step-by-step explanation: first we need to select any two numbers from given numbers 4C2 and arrange them in an order which is 2! and hence number of different ways are 4C2.2! = 12 Reply
Step-by-step explanation:
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Answer:
12
Step-by-step explanation:
first we need to select any two numbers from given numbers 4C2 and arrange them in an order which is 2! and hence number of different ways are 4C2.2! = 12