20.-
27
The average of a non - zero number and its square is 12 times the number. The number is?
a) 21
b) 23
c) 18
d) 24
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a number is selected at a random from the numbers 1.2.3.4.5.....15 . find the probability that the selected number is a multiple of 4
a number is selected at a random from the numbers 1.2.3.4.5.....15 . find the probability that the selected number is a multiple of 4
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