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Numerical Ability
Ratio and Proportion
digit n of a natural number x,y z and are 1,2,3,....,9 each of them appering exactly one.given the ratio of x:y:z is 1:3:5. determine x,y and z
Read Solution (Total 6)
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- 129
387
645 - 11 years agoHelpfull: Yes(8) No(4)
- Last digit of 3rd number can be 5 or 0
but zero is not allowed.
so last digit ( unit place) of 3rd number will be 5.
Last digit of x and y will be odd number.
First digit ( MSD) of x can be 1 only so that 5x remains a 3 digit number.
so possible combinations are
x= 1*3 or 1*9
y= **9 or **7
z= **5
now one can easily get the numbers. - 11 years agoHelpfull: Yes(8) No(3)
- Dear Parveen,
Already well explained by Dipin.
when u hv known that
x= 1*3 or 1*9
Then u know that * can not be 1,9,8,5.
checking possibilities, u can get
x= 129. - 11 years agoHelpfull: Yes(3) No(1)
- kindly explain how u got it frnd
- 11 years agoHelpfull: Yes(0) No(3)
- how come u got the value of x khanna
- 11 years agoHelpfull: Yes(0) No(2)
- x=129, y=129*3=387, z= 129*5=645
- 11 years agoHelpfull: Yes(0) No(1)
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