[x] denotes the least integer not less than x.
Is [2d]=0?
1). [d]=0
2). [3d]=0
OA - B
least integer less than...
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1). [d]=0
now here d can be any value between -0.1 to -0.9
now if it is -.1 then [2d] =0 , but if it is -.9 then its not
INSUFF
2). [3d]=0
i.e max possible value of 3d is -.99, 2d will be less than that
henece SUFF
B
now here d can be any value between -0.1 to -0.9
now if it is -.1 then [2d] =0 , but if it is -.9 then its not
INSUFF
2). [3d]=0
i.e max possible value of 3d is -.99, 2d will be less than that
henece SUFF
B
Regards
Samir
Samir