In this question, three statements are given followed by four conclusions. Choose the conclusion(s) which best fit(s) logically. Statements: 1) All laptops are keyboards. 2) Some printers are laptops. 3) All keyboards are scanners. Conclusions: I. Some scanners are laptops. II. Some printers are scanners. III. All laptops are scanners. IV. Some laptops are not scanners.?

Only conclusions I, II and III follow
Only conclusions I and IV follow
Only conclusions I, III and IV follow
Only conclusions III and IV follow

LohaHridoy

6 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 1 : Only conclusions I, II and III follow

The least possible Venn diagrams as follows

[ alt="RRB JE CBT 1 23 May 2019 Shift 2 Trupti savita 24 Q (1).docx 25" src="//storage.googleapis.com/tb-img/production/20/04/RRB_JE_CBT_1_23_May_2019_Shift_2_Trupti_savita_24_Q_%281%29.docx%2025.PNG" style="width: 315px; height: 148px;">

I. Some scanners are laptops → True (All laptop are keyboard and all keyboard are scanner hence it follows)

II. Some printers are scanners → True (Printer which are laptop will be scanner as well)

III. All laptops are scanners → True (All laptop are keyboard and all keyboard are scanner hence it follows)

IV. Some laptops are not scanners → False (it is a negative conclusion and directly cannot be driven form positive statements)

Hence, Only conclusions I, II and III follows.

6 views Answered 2022-09-04 04:29

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