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ankur

· started a discussion

· 1 Months ago

amazing test series (Question: 117495.0 )

please tell me how you do it. so many wrong ques, options and solution is very hard task. waste of money and time is all this series is.

Question:
DIRECTIONS: The question given below contain two statements giving certain data. You have to decide whether the data given in the statements are sufficient for answering the question? Mark answer-

What is the cost of polishing the rectangular floor?


(I)  Room is 9 mt. long and 7 mt. wide.

(II)  Cost of polishing the floor of 10 mt. × 5 mt. is \(\unicode{x20B9} \)112.50

Options:
A) If statement I alone is sufficient but statement II alone is not sufficient.
B) If statement II alone is sufficient but statement I alone is not sufficient.
C) If each statement alone (either I or II) is sufficient.
D) If statement I and II together are  sufficient.
Solution:
Ans: (d) Area of the room = 9 × 7 = 63 mt2

Rate


\(\therefore\) Combining both the statements

Cost of polishing the rectangular floor \(\Rightarrow\) 63 × 2.25 = \(\unicode{x20B9} \)141.75

Nikhil Manohar

· commented

· 1 Months ago

no option as "both needed"
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