There are 14 spots. Each spot has 8 seats. 28 people seated in all spots. No similar number of people sat in any spot. How many spot left with no people at all.
a) 7
b) 10
c) 8
d) 12

• ans: 7
  
  total 14 spots with 8 chairs
  at each spot different number of people
  so, possible combinations
  1+2+3+4+5+6+7+8
  but,
  only 28 people their
  so,
  1+2+3+4+5+6+7=28
  so 7 possibilities
  vacant=14-7=7
• 10 years agoHelpfull: Yes(14) No(2)
• ther r 14 spots with 8 seats
  no.of people n each spot should be diffeerent
  => no. of peple n 5 of 14 spots may be 1,5,6,7,8
  =>5+6+7+8+1=28
  so, th ans may 9 too..
• 10 years agoHelpfull: Yes(6) No(2)
• the ans is 8
• 10 years agoHelpfull: Yes(3) No(6)
• The total spots available is 14
  Among 28 1 sat in the 1st spot
  similarly up to 7th spot 28 occupy
  ie.,1+2+3+4+5+6+7=28
  Left out spot=14-7=7
  the answer is 7.
• 10 years agoHelpfull: Yes(3) No(0)
• in 1st spot one person sit, 2nd spot 2 person sit,like this goes on and in 7th spot seven person sit so 1+2+3+4+5+6+7=28,so left spots are 7. Hence answer is 7
• 10 years agoHelpfull: Yes(2) No(0)
• 28/8=3 and 4 as rem..
  so..14-(3+1)=10
• 10 years agoHelpfull: Yes(1) No(3)
• I think this is a dummy qstn. bcoz, and may be 7, 8 or any thing
  
• 8 years agoHelpfull: Yes(0) No(1)