Question

i an bigger than 8 the number is less than 500 the number is nit multiple of 5. the number is multiple by 6 the number is even its ten digit is even and is doubled its ones digit. what is the number

Answer 1

the number is 4XX, 3XX, 2XX, 1XX or AB
--- the number is a multiple of 6
multiples of 6 end in 6, 2, 8, 4, and 0
but it is NOT a multiple of 5, so that rules out the 0
---- the tens digit is double the ones digit
that rules out the 6 and 8 from the ones digit

so the one's digit must be either 2 or 4

so the number could be any of the following:

442 , 484
342, 384
242, 284
142, 184

Of those only 342 and 384 are also multiples of 6

so our number could be either 342 or 384 as a 3 digit,
42 or 84 as a 2-digit number

choices: 42, 84, 342, 384