A) p, q and r are all false
B) p, q and r are all true
C) p and q are true and r is false
D) p is true and q and r are false
Correct Answer: B
Solution :
\[h={{h}_{w}}+\frac{{{h}_{o}}{{d}_{o}}}{{{d}_{w}}}\] is true means \[=100+\frac{400\times 0.9}{1}\] and \[=100+360=460\] are both true. Hence, p, q and r are all true.
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