MBA Entrance Exams / #XAT

April 16, 2018

April 16, 2018 @ 05:59 PM

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XAT 2019 :QA must not upset you

XAT 2019 will be conducted in January 2019, In 47 cities across India and 2 International cities outside India.
Bonus : Download XAT Tips PDF to crack XAT Exam 2019
 
Quantitative Ability section in XAT can upset the strong will and confidence of even the most serious XAT aspirants. Some basic points which should be kept in mind while preparing and practicing for QA so that you must not get upset. 
 
Practice on QA is the best solution!
 
 
In the figure given below, ABCD is a parallelogram. E is the midpoint of the side BC. DF is drawnperpendicular to AE. If AB = 5.6 cm and BC = 2.8 cm, find the length of CF.
 
XAT 2019 Study material - Quantitative ability
 
(a) 4.2 cm       (b) 5.6 cm        (c) 4.8 cm           (d) 5.4 cm
 
 
Solution:
 
XAT 2015 Study material - Quantitative ability
Let’s draw CH parallel to AE intersecting DF at G.
 
As CE || AH and AE || CH, AECH is also a parallelogram.
Hence, CE = AH and H is the midpoint of AD.
 
In ADF,GH || AF,therefore, G is the midpoint of FD.
(Basic Proportionality Theorem)
 
In CFD,since EF || CG and CGF 90CG is the median as well as the altitude. Hence, CDFis an isosceles triangle and CF = CD = 5.6 cm.
 

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