given that (4x/5)-(1/10)<=x-(2/5), state the smallest value of x when 1)x is an integer 2)x is prime number 3)x is a rational number please guide me on how should i solve these ?
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answer comes as 4.5<=x but what should i do then ?
Originally Posted by haftakhan answer comes as 4.5<=x but what should i do then ? I don't get ... What is the smallest integer which satisfies this inequality? What is the smallest prime number? What is the smallest rational number?
How u get 3/10 after solving (-1/10)+(2/5) ?
Integer is 1 Prime number will be 1 as well Rational number ???
Originally Posted by haftakhan Prime number will be 1 as well The number 1 is not prime. If you do not know that, you should not attempt this question. Moreover, anyone asked to do this question surely knows what a rational number is.
Originally Posted by haftakhan Integer is 1 Prime number will be 1 as well Rational number ??? For that matter 1 is also smaller than 3/2 so it doesn't satisfy the inequality
Sorry ,i thought x was lesser than 3/2 integer and prime number should be 2
Originally Posted by haftakhan Sorry ,i thought x was lesser than 3/2 integer and prime number should be 2 Okay, and your condition was that . What is the smallest rational number satifying that?
It would be 3/2
Originally Posted by haftakhan It would be 3/2 Correct.
Last edited by e^(i*pi); Aug 13th 2011 at 06:14 AM. Reason: OP answered the question already!
Yes, e^ipi, he said that in post #10.