bakra's posts

bakra
replied to Official Quant Thread for CAT 2011 [Part 2]

cn sum1 plz help me out wid dis 1......

all the nine digits are arranged here so as to form four square numbers

9 81 324 576

how wld you put them together so as to form a single smallest and single largest square number respectively???? kindly...

all the nine digits are arranged here so as to form four square numbers

9 81 324 576

how wld you put them together so as to form a single smallest and single largest square number respectively???? kindly...

bakra
replied to Official Quant Thread for CAT 2011 [Part 2]

Solution:

the answer is 42...... any number ending with 5 can only occur once as any duplication will render it divisible by 10..... the same logic applies to any direct multiple of 10..... now 1 and 9 cannot appear together.... bt either of d two can appear and dat is possible in 10 ways........

the answer is 42...... any number ending with 5 can only occur once as any duplication will render it divisible by 10..... the same logic applies to any direct multiple of 10..... now 1 and 9 cannot appear together.... bt either of d two can appear and dat is possible in 10 ways........