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let p,q,r and s be four statementssuch that:
if p is true, then q is true;
if q is true,then r is true and
if s is true,then at least one of q and r is false.
then it follows that:
a. if p is true then s is false.
b. if s is falsae both q and r are true.
c. if at least one of q and r is false then s is false.
d. if q is true then s is true

Read Solution (Total 3)

a. if p is true than q and r both true to satisfy this s must be false
11 years agoHelpfull: Yes(2) No(0)

someone help
12 years agoHelpfull: Yes(0) No(1)
ans is b
from condition 3 ie. if s is true,then at least one of q and r is false
so option b ie. if s is falsae both q and r are true
11 years agoHelpfull: Yes(0) No(0)

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