How many no less than 400 are divisible by atleast 2,3,4,6,9,14 or 21.
Option
a. 266
b. 276
c. 321
d. 588

• 266
  no divided by 4,6,14 also divided by 2.
  no divided bu 9 ,6,21 also divided by 3
  so no divided by 2,3 are 266
• 10 years agoHelpfull: Yes(40) No(8)
• no divided by 4,6,14 is also divided by 2.....
  no divided by 9,6,21 is also divided by 3....
  so no divided by 2 is 199 & no divided by 3 is 133
  so total (199+133)=332,
  now there are some common factors that are the multiple of 6.
  the no that numbers is 66
  so total no=(332-66)=266
  so 266 is the ans.
• 10 years agoHelpfull: Yes(24) No(0)
• 286
  divisible by 2= 199
  divisible by 3=67
  divisible by 7 =20
  so ans is 286
  
• 10 years agoHelpfull: Yes(5) No(8)
• 276
  No divisible by 2 -> 200
  No Divisible by 3 but not 2 -> 67
  No Divisible by 7 but not by 3 and 2 ->9
  
  Total = 200+67+9 = 276
• 10 years agoHelpfull: Yes(4) No(2)
• 588 is exactly divisible by 2 and 3
  so 588 is correct answer
• 10 years agoHelpfull: Yes(3) No(25)
• @aftab ahmed 133(divisible by 3)+199(divisible by 2)-66(divisible by 2 & 3)=266
• 10 years agoHelpfull: Yes(1) No(1)
• answer is 588 .
  in d ques the statement is 2,3,4,6,9,14 or 21... OR means how many numbers are there divisible by 2 or 3 or 4 ....so on
  
  let number be n
  n/2 =199
  n/3=133
  n/4=99
  n/6=99
  n/9=44
  n/14=28
  n/21=19
  
  total = 588
• 10 years agoHelpfull: Yes(1) No(8)
• ans should be 265.. not 266.
  Because Total numbers are 399 below 400.
  no. div by 2 = 199
  no. not div by 2 = 200.
  so. in 200 no. div by 3 = 66
  since, no divided by 4,6,14 also divided by 2
  no divided by 9 ,6,21 also divided by 3
  hence, 199+66 = 265
  therefore option should be 265.
  
• 10 years agoHelpfull: Yes(1) No(2)
• @jithin prakash ..but after dividing by 3 it is coming 133 and after adding with 198 it becomes 331 ..how it is explain?
• 10 years agoHelpfull: Yes(0) No(0)
• it all comes down to number of numbers less than 400 that are divisible by 2,3,7.
  let n(x)=numbers divisible by 2 which are less than 400.
  final answer=n(2)+n(3)+n(7)-n(6)-n(21)-n(14)+n(42).
• 10 years agoHelpfull: Yes(0) No(0)
• according to me if no is divisible by 2,3,7 then d no is divisible by all the no ....bt m not finding d ryte answer plz someone help me how to find d ans
• 10 years agoHelpfull: Yes(0) No(0)
• till 400 all even numbers will be divisible by 2 ( 200 even numbers) remaining 200 odd numbers 1 3 5 7 9 ..... 399 200/3 = 67 will be divisible by 3, as we have discarded all even numbers and out of remaining numbers 2nd number is 3 then 1 + 198/3 = 67 numbers are divisible by 3.so total 266
• 9 years agoHelpfull: Yes(0) No(0)
• correct answer is 266
• 8 years agoHelpfull: Yes(0) No(0)