King
Help............in the decimal number 33xy2y ,x and y represent digits. If the number is divisible by 275 find x. Help............in the decimal number 33xy2y ,x and y represent digits. If the number is divisible by 275 find x. @Mathematics
Delete
Share
This Question is Closed
sheg
Best Response
You've already chosen the best response.
3
338525
King
Best Response
You've already chosen the best response.
1
how?
sheg
Best Response
You've already chosen the best response.
3
x = 8
y = 5
sheg
Best Response
You've already chosen the best response.
3
see as it is divisible by 275 means y will be either 5 or, 0
King
Best Response
You've already chosen the best response.
1
yeah kk
sheg
Best Response
You've already chosen the best response.
3
and 275 = 5*5*11
King
Best Response
You've already chosen the best response.
1
yes
sheg
Best Response
You've already chosen the best response.
3
that is the resultant should be divisible by 11
King
Best Response
You've already chosen the best response.
1
yeah
sheg
Best Response
You've already chosen the best response.
3
thus the 33xy2y should be divisible by 11.
That is the difference of sum of digits at odd place with the sum of digits at even places should be either 0 or, 11, or, multiple of 11
sheg
Best Response
You've already chosen the best response.
3
sum of odd place digits is 5+x
and sum of even place digit is 3 +2y
sheg
Best Response
You've already chosen the best response.
3
Difference is (5+x) - (3+2y) it should be either 0 / 11/ multiple of 11
sheg
Best Response
You've already chosen the best response.
3
difference is 2 + x - 2y
King
Best Response
You've already chosen the best response.
1
yes
sheg
Best Response
You've already chosen the best response.
3
y can be either 0 or, 5
sheg
Best Response
You've already chosen the best response.
3
when y = 0
therefore we have 2 + x (it should be 0 / 11 / multiple of 11)
but in no case it is possible so Y cannot be 0
King
Best Response
You've already chosen the best response.
1
possible 339020
King
Best Response
You've already chosen the best response.
1
x=9
y=0
sheg
Best Response
You've already chosen the best response.
3
so when y = 5
then we have 2 + x - 2*5 = 2 + x -10 = -8 + x
sheg
Best Response
You've already chosen the best response.
3
yes but then it is not divisible by 275
sheg
Best Response
You've already chosen the best response.
3
if x = 9 in that case it is not divisible by 275
King
Best Response
You've already chosen the best response.
1
oh
sheg
Best Response
You've already chosen the best response.
3
so it cannot be 9
sheg
Best Response
You've already chosen the best response.
3
now we got -8 + x
for what value of x u will have either 0 / 11 / multiple of 11
King
Best Response
You've already chosen the best response.
1
ok thnx u always make me understand
thnx a lot...............!!!!!!!!
sheg
Best Response
You've already chosen the best response.
3
so got the point how many rules u have to apply.........
King
Best Response
You've already chosen the best response.
1
yeah
sheg
Best Response
You've already chosen the best response.
3
another thing that u can do is use short cut that is calculator......hahaha satisfied with the answer
King
Best Response
You've already chosen the best response.
1
yup
100% satisfied
sheg
Best Response
You've already chosen the best response.
3
hey actually u tried to understand the thing other pplare just interested in answers not in the procedure so i gave u a medal