chuyencao wrote:
N = 1234@ and @ represents the units digit, is N a multiple of 5?
(1) @! is not divisible by 5
(2) @ is divisible by 9
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(1)@! is not divisible by 5 so @ is not 0 or 5==> N is not a multiple of 5==> can answer the question
(2)@ is divisible by 9 so @ is 0 or 9; if it is 0 ==> N is a multiple of 5; if @ is 9 N is not a multiple of 5==>Not sufficiency!
I choose A
Please give me the feedback !
(1) @! is not divisible by 5
(2) @ is divisible by 9
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(1)@! is not divisible by 5 so @ is not 0 or 5==> N is not a multiple of 5==> can answer the question
(2)@ is divisible by 9 so @ is 0 or 9; if it is 0 ==> N is a multiple of 5; if @ is 9 N is not a multiple of 5==>Not sufficiency!
I choose A
Please give me the feedback !
Hi- can anyone answer this? why is the answer not A?