The New York Public Library is one of the world's greatest repositories of books and journals. It has a beautiful reading room facing Manhattan's famous Fifth Avenue. lathe reading room are 10 reading spots. Each reading spot consists of a round table with 4 chairs placed around it. There are some readers such that in each occupied reading spot there are different numbers of readers. If in all there are 10 readers: how many reading spots are empty?

• 6 because there are totally 10 spots with 4 chairs
  in 1 st spot there are 4 chairs n 4 occupied.
  in 2nd spot 3 occupied
  in 3rd 2 occupied
  in 4 th 1 occupied
  so totally 4 spots occupied with 10 mem n remaining are 6 spots.
• 11 years agoHelpfull: Yes(12) No(0)
• since each occupied reading spot there are different numbers of readers thus consider 1+2+3+4=10 readers thus 4 spots are occupied and 10-4=6 are emty
• 11 years agoHelpfull: Yes(4) No(0)
• six..,frst there are totally 10 reading spots which contains 4 chairs n in 1st spot der r 4 chairs which all have been occupied n 2nd spot 3 chairs r occupied n in 3rd spot 2 are occupied n in 4th spot 1 has been occupied..,so totally 4 spots r occupied by 10 people n 6 spots are empty
• 11 years agoHelpfull: Yes(1) No(0)
• 6 reading spots are empty because there are 10 spot each having 4 chair if 1st spot was occupied by 4 reader 2nd spot was occupied by 3readers 3rd spot was occupied by 2 readers and 4th spot was occupied by 1 reader so totally 6 is remaining empty
  
• 11 years agoHelpfull: Yes(1) No(0)
• total there are 10 persons and thus the total 10 tables can be filled
  by
  1,2,3,4 persons so total 10 persons are filled therefore 4 tables are occupied
  and thus 6 are unoccupied
• 10 years agoHelpfull: Yes(1) No(0)