How many Integers are there in between 200 and 400 that are divisible by 7?
A)31 B)33 C)29 D)27

• 203 is divisible by 7 after 200
  399 is divisible by 7 before 400
  k=a+(n-1)d
  399=203+(n-1)7
  n=29
• 4 years agoHelpfull: Yes(1) No(1)
• a=203
  d=(210-203=7)
  l=399
  a(n) =a+(n-1)d
  399 = 203+(n-1)*7
  n=29
  then Ans = 29
• 4 years agoHelpfull: Yes(1) No(0)
• w.k.t 203 is the 1st number in the integers between 200-400 that is divisible by 7
  and the last number is 399
  so 7x29=203
  7x57=399
  so we get 29 numbers divisble by 7 in between 200 and 400
  option(c)
• 3 years agoHelpfull: Yes(0) No(0)