Three numbers are chosen at random from the first 20 natural numbers. The probability that their product is even is -

Three numbers are chosen at random from the first 20 natural numbers. Then the probability that their product is odd is

Three numbers are chosen at random from the first 20 natural numbers. The probability that they are not consecutive is

Three integers are chosen at random from the first 20 integers. The probability that their product is even is:

Three integers are chosen at random from the first 20 integers. The probability that their product is even is

Three integers are chosen at random from the first 20 integers. The probability that their product is even, is

Three integers are chosen at random from the first 20 integers.The probability that their product is even is:

Three distinct numbers are chosen at random from the first 15 natural numbers. The probability that the sum will be divisible by 3 is