The two perfect numbers less than 40 are 6 (1+2+3) and 28 (1+2+4+7+14).
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20 less than 2 times a number is 40 = 2x - 20 = 40Let x = the number2 times a number = 2x20 less than = - 20is 40: =40Translating it into mathematical symbols :2x - 20 = 40
2
No number is less than 20 and greater than 40, but if you switch them around, your answer is 25.
37
It is: 37