P ,Q,R,S are four number if p-Q=-9 p+R = 0.5 and Q-S =-7 which number is the greatest of
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the greatest is s.
Step-by-step explanation:
p = q-9
p = r + 0.5
q = s - 7
Writing all these in the form of s.
p = s - 7 - 9 = s-16
q = s - 7
r = p - 0.5 = s - 16 - 0.5 = s - 16.5
s = q + 7 = s - 7 + 7 = s
finally, s - 16.5 < s - 16 < s - 7 < s
Do s is the greatest number
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