In an year N,the 320th day of the year is Thursday .In the year N+1 the 206th day of the year is also Thursday.what is the 168th day of in the year N-1?
a.Friday
b.Thursday
c.Tuesday
d.Saturday

• OPTION : A (FRIDAY)
  
  EXPLAINATION
  
  If the Nth year is a non-leap year, then 320th day of year N to 206th day of year N+1 is [(365
  – 320) + 206] = 251 days i.e. 35 weeks + 6 days. But this will not make the two days to be
  Thursday.
  Thus, the Nth year has to be a leap year. In this case 320th day of year N to 206th day of year
  N+1 is [(366 – 320) + 206) = 252 days i.e. 36 weeks. Hence both days will be same day of the
  week i.e. Thursday as given by the data.
  
  168th day of N-1 year to 320th day of N year is [(365 – 168) + 320) = 517 days i.e. 73 weeks +
  6 days. Thus, if the 320th day is Thursday, then the 168th day of year will be Friday,
  
• 9 years agoHelpfull: Yes(16) No(5)
• Option: A ( Friday )
  
  the info given about Nth and N+1 year to judge whether the year is leap year or non leap year
  then between 206th day and 320th day of year N+1 there are 2 odd days ( 320-206 = 16 weeks and 2 odd days) so on 320th day of year N+1 its Saturday now in we can say that N is a leap year because of 2 odd days in N and N+1 .
  
  taking N and N-1 in consideration
  320th day of N-1 is wednesday and 168th day of N-1 will be friday as there are 5 odd days in between....
• 9 years agoHelpfull: Yes(11) No(2)
• friday.
  if we consider Nth year to be a leap year..only then 206th day of year N+1 is a thursday...((366-320)+206)/7...therefore N-1 year cant be a leap year..therefore (365-168)+320=517days..when divided by 7 gives 6 as reminded..which turns out to be friday
  
  
• 9 years agoHelpfull: Yes(1) No(0)
• Friday..
  if we consider Nth year to be a leap year..only then 206th day of year N+1 is a thursday...((366-320)+206)/7...therefore N-1 year cant be a leap year..therefore (365-168)+320=517days..when divided by 7 gives 6 as reminded..which turns out to be friday
• 9 years agoHelpfull: Yes(0) No(2)
• c. tuesday
• 9 years agoHelpfull: Yes(0) No(1)
• Friday is correct
• 9 years agoHelpfull: Yes(0) No(0)