a four digit number is to be formed by using the digit 2, 4, 7, 8 find the probability that the number will start with 7
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Answer:
1/4
Step-by-step explanation:
total no. of digits that can be formed is 16
no. of digits that will start with 7 is 4
so, probability of getting a digit that starts with 7 is 1/4
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