four distinct odd numbers (w^2+x^2) (y^2+z^2) is always divisible by
op:
1
4
5
10

• answer will be 4 because-
  1.square of odd number will be an odd number...(w^2=odd) similarly the others.
  2. sum off 2 odd numbers will be an even number.(w^2+x^2)=even
  3.multiplication of 2 even numbers will be an even number.(w^2+x^2)*(y^2+z^2)
  4.One even number can be divisible by 2. so multiplication of 2 even numbers can be divisible by 4.
  
• 8 years agoHelpfull: Yes(16) No(1)
• sorry op;
  2
  4
  5
  10
  i think 4
  
• 8 years agoHelpfull: Yes(5) No(1)
• Ans is 2: Because square of odd number will be odd and sum of two odd number is even
  and every even number is divisible by 2
  
• 8 years agoHelpfull: Yes(2) No(1)
• always divisible by 1
• 8 years agoHelpfull: Yes(2) No(3)
• answer is 2 because
  1.odd*odd=odd
  2.odd+odd=even
  3.even*even=even
  
  All even number divisible by 2(not necessary that all even number will be divisible by 4 ,5 and 10)
• 8 years agoHelpfull: Yes(2) No(0)
• answer is 1
  because any number is easily divisible by 1 its not matter that that is even or odd
• 8 years agoHelpfull: Yes(1) No(5)
• the answer is 4
• 8 years agoHelpfull: Yes(1) No(0)
• the soln. will be divisible by all..... 1,2 and 4
  and not divisible by 5 and 10.
• 8 years agoHelpfull: Yes(1) No(1)
• let put numbers 3,5,7,9
  we have (3^2+5^2)*(7^2+9^2)=34*130 i.e. divisible by 10
  one more time we can swap values and answer will still be divisible by 10
  hence answer is 10
  please correct if I am wrong.
• 8 years agoHelpfull: Yes(1) No(2)
• addition of two odd numbers give you an even number and multiplication of even number is always even number.So it is divisible by 4
• 8 years agoHelpfull: Yes(0) No(0)
• on squaring of odd no we will gate an odd no.
  i.e- 3*3=9
  5*5=25
  and we know addition of two odd numbers will give an even no
  so,
  (w*w+x*x)=even which is divisible by 2
  y*y+z*z=even which is also divisible by 2
  now
  (w*w+x*x)(y*y+z*z) will be devisible by 2*2+4
  
  
• 8 years agoHelpfull: Yes(0) No(0)
• 4
  summation of two odd squares will leave an even number in two brackets. One two from each bracket will lead to a divisibility by 4.
• 8 years agoHelpfull: Yes(0) No(0)
• take w=2,x=3,y=4,z=5
  u will get 533 which is divisible by 1 not by 2or 4
• 8 years agoHelpfull: Yes(0) No(9)
• all are true
• 8 years agoHelpfull: Yes(0) No(4)
• correct option is 4
  odd^2=odd
  even+even=even
  and even*even=even
• 8 years agoHelpfull: Yes(0) No(0)
• Same question they have asked for me one month before.
• 7 years agoHelpfull: Yes(0) No(0)