If we divide 4321 by 3 - remainder 1 - to make it divisible by 3
values of K (less than 10) are 2,5 and 8.
Stmt 1 insufficient
If we divide 4321 by 7 - remainder 2 - to make it divisible by 7
value of K (less than 10) is just 5.
Stmt 2 sufficient.
Hence B
divisibility ! confused !thanks
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Source: Beat The GMAT — Data Sufficiency |












