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HARSH

· started a discussion

· 1 Months ago

ques 86 (Question: 389916.0 )

all true
please check the ans

Question:

DIRECTION: In the questions below are given three statements followed by either 2, 3 or 4 conclusions. You have to take 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 conclusions logically follows from the given statements disregarding commonly known facts.

Statements:

All machines are scanners.

All scanners are printers.

No printers are monitors.

Conclusions:

I. No monitor is machine.

II. No monitor is scanner.

III. Some printers are machines.

IV Some printers are scanners.

Options:
A)

None follows.

B)

Only I and II follow.

C)

Only II and III follow.

D)

Only II, III and IV follow.

E) None of these
Solution:

Ans: (d) 

Statements

All machines are scannersʉ٦(A)

All scanners are printers âŸ¶ (A)

None of the printers is a monitorʉ٦(E)

A+A=A

Conclusion: 

All machines are printers.

=A+E=E

Conclusion:

None of the machines is a monitor.

None of the scanners is a monitor.

From conversion,

All machines are scanners.

  

HARSH

· commented

· 1 Months ago

sir why will not come conclusion 1
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