Show that one and only one out of n + 4, n + 7, n + 10 and n + 13 is divisible by 4.
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n+10 is d answer as,
=(n+10)/4
=n/4+10/4
=n/4+2/5
=(5n+8)/20
=(n+10)/4
=n/4+10/4
=n/4+2/5
=(5n+8)/20
snehasethi313sneha:
heyy !! thank u for answering but u mistaken as it is 5/2 rather than 2/5 and one more thing i want too know how u came to know that it is divisible by 4 pls answer and we have to do other cases also in the same way ??
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