1 Answers
Option 1 : All the statements are required
Using the following notations, we can draw the family tree,
[ alt="RRB OA MFT8 RRBOA 18 Aug 2018 40Q images Q38" src="//storage.googleapis.com/tb-img/production/18/09/RRB_OA_MFT8_RRBOA_18_Aug_2018_40Q_images_Q38.PNG">
From statement I and II,
[ alt="RRB OA MFT8 RRBOA 18 Aug 2018 40Q images Q38a" src="//storage.googleapis.com/tb-img/production/18/09/RRB_OA_MFT8_RRBOA_18_Aug_2018_40Q_images_Q38a.PNG" style="height:149px; width:334px">
The relation between Dipali and Ajay is not given. Therefore, Statement I and II together are not sufficient to answer the question.
From statement II and III,
[ alt="RRB OA MFT8 RRBOA 18 Aug 2018 40Q images Q38b" src="//storage.googleapis.com/tb-img/production/18/09/RRB_OA_MFT8_RRBOA_18_Aug_2018_40Q_images_Q38b.PNG" style="height:169px; width:324px">
The relation between Dipali and Ajay is not given. Therefore, Statement II and III together are not sufficient to answer the question.
From statement I and III,
[ alt="RRB OA MFT8 RRBOA 18 Aug 2018 40Q images Q38c" src="//storage.googleapis.com/tb-img/production/18/09/RRB_OA_MFT8_RRBOA_18_Aug_2018_40Q_images_Q38c.PNG" style="height:157px; width:319px">
The relation between Dipali and Ajay is not given. Therefore, Statement I and III together are not sufficient to answer the question.
Combining all the statements,
[ alt="RRB OA MFT8 RRBOA 18 Aug 2018 40Q images Q38d" src="//storage.googleapis.com/tb-img/production/18/09/RRB_OA_MFT8_RRBOA_18_Aug_2018_40Q_images_Q38d.PNG">
Clearly Dipali and Ajay are cousins.
Hence, all the statements are required.