how many numbers from 283 to 839 have digit 7 in it??

• 283-299=2
  300-399=20
  400-499=20
  500-599=20
  600-699=20
  700-799=120
  800-839=4
  total=206
  
• 10 years agoHelpfull: Yes(84) No(22)
• 283-299=2
  300-399=19
  400-499=19
  500-599=19
  600-699=19
  700-799=100
  800-839=4
  total=182
• 10 years agoHelpfull: Yes(38) No(26)
• Answer is 182
  
  Counting:
  
  from 300 to 399 = 19
  from 400 to 499 = 19
  from 500 to 599 = 19
  from 600 to 699 = 19
  from 700 to 799 = 100
  
  From 283 to 299 we have 2 AND from 800 to 839 we have 4
  
  Therefore answer: (19*4)+100+2+4=182
• 10 years agoHelpfull: Yes(10) No(11)
• answer is 201.....
  283-300=4
  301-400=19
  401-500=19
  501-600=19
  601-700=20
  701-800=118
  801-839=4..
  total 201.
• 10 years agoHelpfull: Yes(7) No(15)
• 283-299=2
  300-399=19
  400-499=19
  500-599=19
  600-699=19
  700-799=100
  800-839=4
  total=182
• 10 years agoHelpfull: Yes(7) No(8)
• From 283-299 we will get 2 7's
  For 300-399 we will get 19 7's.. like that for 400 to 499,500 to 599, 600 to 699 we will get => 2+(4*19)=2+76=78
  In 700 series we have 100 7's
  so 100+78=178
  Again from 800 - 839 4 7's
  => 178+4=182
• 10 years agoHelpfull: Yes(5) No(5)
• 1) 300 to 399 = 19
  2) 400 to 499 = 19
  3) 500 to 599 = 19
  4) 600 to 699 = 19
  5) 700 to 799 = 100
  6)283 to 299=2
  7)800 to 839=4
  so req. ans is 182
• 10 years agoHelpfull: Yes(4) No(6)
• ans is 56
  counting no.s after 283 we have 7 in 287,297 ie.2 no.s in 200 now in 300's we have 10 such no.s. similarly in 400 again we will have 10 no.s adding them we have 50 no.s between 300 and 800.
  now in 200's we calculated 2 such no.s and in 800's we have 4 no.s uptil 839.
  so,
  50+2+4=56.
• 10 years agoHelpfull: Yes(3) No(23)
• 2+19+19+19+19+119+4 = 201
• 10 years agoHelpfull: Yes(3) No(3)
• total 200 , from 283 to 300 =2 , 300 to 400 = 19, 400 to 500 =19,500 t0 600 =19, 600 to 700 = 19 700 to 119 ,700 to 800 19, and 3 total 200
• 10 years agoHelpfull: Yes(2) No(11)
• 283-299=2
  300-399=20
  400-499=20
  500-599=20
  600-699=20
  700-799=120
  800-839=4
• 10 years agoHelpfull: Yes(1) No(2)
• 283-300=4
  301-400=19
  401-500=19
  501-600=19
  601-700=20
  701-800=118
  801-839=4..
  total 201.
  
• 9 years agoHelpfull: Yes(1) No(1)
• 283-299=2
  300-399=19( considering unit digit 7 and 10th place 7)
  400-499=19
  500-599=19
  600-699=19
  700-799=100
  800-839=4
  total=182
• 8 years agoHelpfull: Yes(1) No(1)
• 189 is the ans
• 10 years agoHelpfull: Yes(0) No(3)
• i think the answer is 56. here have to find no. of numbers which have digit 7 in it. not no. of 7 in between 283 to 839.
  283-300: 287,297=2
  300-399: 307,317,327,337,347,357,367,377,387,397=10
  400-499: same way 10
  500-599: same way 10
  600-699: same way 10
  700-799: same way 10
  800-839: 807,817,827,837=4
  so total=2+5*10+4=56
• 9 years agoHelpfull: Yes(0) No(5)
• every 100 nums will have 20 7 letter, and in 700 to 799 a total of 120 so total is 2+20+20+20+20+120+4=206
• 7 years agoHelpfull: Yes(0) No(0)