Q1) Three different numbers add up to 50. ?
?
? = 50
●The numbers are all even.
●Each number is greater than 10.
●What could the numbers be?
Q2)Erik has a set of number cards from 1 to 20.
●He picks four different cards.
●Exactly three of his cards are multiples of 5.
●Exactly three of his cards are even numbers.
●All four of the numbers add up to less than 40.
What cards could Erik pick?
Q3) Which number satisfies all of these conditions:
it is a multiple of 25
it is even
it is greater than 550 but less than 700
it is not 600.
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