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GATE CSE 2021 Set 2 | Question: 21
A data file consisting of $1,50,000$ student-records is stored on a hard disk with block size of $4096$ bytes. The data file is sorted on the primary key $\textrm{RollNo}$. The size of a record pointer for this disk is $7$ bytes. ... that the records of data file and index file are not split across disk blocks. The number of blocks in the index file is ________

commented in Databases Sep 26, 2021

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gateacademy testseries
In how many ways can seven different jobs be assigned to four different employees so that each employee is assigned at least one job and the most difficult job is assigned to the best employee?

answered in Combinatory Sep 8, 2021

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this question asked in gate 2017 :iit roorkee (EC,BT,PI IN SET -1)
there are 3 Indians and 3 Chinese in a group of 6 people .how many subgroups of this group can we choose so that every subgroup has at least one Indian? please help me out in this question also explain how to handle atleast case

answer edited in Analytical Aptitude Sep 8, 2021

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