In the following question below are given three statements followed by three conclusions. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusion logically follows the given statements. Statements: I. Some Mobile are Laptop. II. All Laptop are Grey. III. No Grey is a Blue. Conclusions: I. Some Mobile are Grey. II. Some Blue are Mobile. III. No Laptop is a Blue.?

Only I follows
Only III follows
Both I and II follow
Both I and III follow
Both II and III follow

LohaHridoy

5 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 4 : Both I and III follow

Consider the following least possible Venn diagram,

[ alt="RRB OA MFT7 Neha 9 Aug 2018 40q hrev images Q31" src="//storage.googleapis.com/tb-img/production/18/08/RRB_OA_MFT7_Neha_9%20Aug%202018_40q_hrev_images_Q31.PNG">

Conclusions:

I. Some Mobile are Grey → True.

II. Some Blue are Mobile → False (It is possible but not definite).

III. No Laptop is a Blue → True (as All Laptop are Grey and No Grey is Blue).

Hence, conclusions I and III follow.

5 views Answered 2022-09-04 04:29

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