Elitmus
Exam
Numerical Ability
Arithmetic
K is a 3 digit number .K1, K2, K3 are numbers obtained when K is in base 5,7 and 9 respectively. The units place in K1, K2, K3 is 2. How many such possible K values are there
a) 0 b) 1 c) 2 d) 3
Read Solution (Total 5)
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- LCM of 5,7,9=35*9=315
so the no. can be 315x+2
x could be 1 0r 2 or 3
So ansr is=3 values - 11 years agoHelpfull: Yes(36) No(10)
- Hi mukesh,
http://totalgadha.com/mod/forum/discuss.php?d=9263
Pls can u solve this n approach also .
Thanks in advance - 11 years agoHelpfull: Yes(3) No(1)
- 3 digit no..
last digit is fixed
remaing 1st 2 digit can be choose by 3p2 ways and last digit 1 ways
so 3p2*1=3
ans=3 - 11 years agoHelpfull: Yes(2) No(5)
- plz explain @mukesh
- 11 years agoHelpfull: Yes(1) No(0)
- Only one value of k is possible I.e.,552
- 10 years agoHelpfull: Yes(0) No(1)
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