Elitmus
Exam
Numerical Ability
Co-ordinate geometry
PR is a tangent to the circle at point P.Q ia another point on the circle such that PQ is the diameter of the circle and RQ cuts the circle at point M. IF the radius of the circle is 4 units and PR is 6 units Find the ratio of the perimeter of triangle PMR to the triangle PQR
A)11/20
B)3/5
C)13/20
D)18/25
Read Solution (Total 9)
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- 3/5
by using hypotenude theorem,the answer can be deducted easily...
in last answer wud be 14.4/240 which will give 3/5 - 11 years agoHelpfull: Yes(4) No(2)
- i am not getting it
- 11 years agoHelpfull: Yes(3) No(0)
- V GET TRIANGLES QMP AND PMR SIMILAR TO EACH OTHER.QR=10 AS PR=6 AND PQ=8(DIAMETER),SO 6^2+8^2=10^2.ALSO USING SIMILARITY,QM/MR= 16/9.SO MR= 9/25*10=18/25.AND PM WILL COME OUT TO BE 24/5.(USING PYTHA. THEOREM IN TR.PMR).SO,RATIO = (6+18/5+24/5)/(8+6+10) = 14.4/24= 3/5
- 11 years agoHelpfull: Yes(1) No(2)
- This question is asked in CAT exam. B) 3/5 is correct answer.
- 9 years agoHelpfull: Yes(1) No(0)
- @Mehul Pruthi can u explain clearly
- 11 years agoHelpfull: Yes(0) No(0)
- 3/5 i think
- 11 years agoHelpfull: Yes(0) No(0)
- my ans is 0.658 i.e option(c)...
- 11 years agoHelpfull: Yes(0) No(1)
- http://allaboutelitmus.blogspot.in/2014/07/1.html
- 7 years agoHelpfull: Yes(0) No(0)
- Check dis out
http://allaboutelitmus.blogspot.in/2014/07/1.html - 7 years agoHelpfull: Yes(0) No(0)
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