Question

a) find the HCF of the following
575,690,920 and 253​

Answer 1

Step-by-step explanation:

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Answer 2

probability of (a or b) is equal to probability of (a) + probability of (b) - probability of (a and b).

in your problem:

a is equal to choosing a number less than 5.

b is equal to choosing an even number.

there are 10 numbers to choose from.

there are 4 numbers less than 5 (1,2,3,4), so the probability of choosing a number less than 5 is equal to 4/10.

we get probability of (a) is equal to 4/10.

there are 5 even numbers (2,4,6,8,10), so the probability of choosing an even number is 5/10.

we get probability of (b) is equal to 5/10.

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