1@debotosh actually i did it lik that only....jus wanted to verify.....i dont hav answer for these q thats why confirming here.....btw try 3rd one[1]
2)if a four digit number is chosen at a random.....wht is the probab that it contains not more than 2 different digits.......
3)fnd the area of triangle whose vertices are the incenter ,centroid,and the circumcenter of a triangle with sides 14,50 and 48
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6 Answers
1Caution: 1)did u check that nos. starting with 0 will be excluded in case of nos divisible by 3 ?
1oh yeah i think i made a mistake der......leave the first 1 try 2nd and 3rd
19for the second one , the cases are :
1) all similar 2) 1 diff , 3 similar 3)2 diff , 2 similar
,,,now find the prob for each and add them up (they are mutually exclusive)
1
62For the third one,
The first and the last observation is that the triangle is right angled.. :)
1oh yes..taht thing jus kills the q[3]......thnx....but wat if it wasnt a right angled triangle