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The following question, there are three statements I, II and III. Read the question carefully and mark your answer according to which statements(s) is/are sufficient to the answer the question. Find the total cost of flooring a room? Statement I: The length of the room is 70% more than the breadth of the room Statement II: The cost of flooring some other room whose length is twice the length of the given room and breadth is one third of the breadth of the given room is Rs.3000 less than the cost of flooring of given room Statement III: The perimeter of the room is 90 m and cost of flooring is Rs. 20 per m2

The following question, there are three statements I, II and III. Read the question carefully and mark your answer according to which statements(s) is/are sufficient to the answer the question. Find the total cost of flooring a room? Statement I: The length of the room is 70% more than the breadth of the room Statement II: The cost of flooring some other room whose length is twice the length of the given room and breadth is one third of the breadth of the given room is Rs.3000 less than the cost of flooring of given room Statement III: The perimeter of the room is 90 m and cost of flooring is Rs. 20 per m2 Correct Answer  I and III or II

Length ‘C’ be the cost of flooring

From statement I

Length of the room = 70% more than the breadth

⇒ Length (L) = Breadth (B) + (70% Breadth)

⇒ L = B + 0.7B = 1.7B

From statement II

(L × B × C) - = 3000

⇒ LBC -(2/3) LBC = 3000

⇒ (1/3) LBC = 3000

⇒ L × B × C = Rs. 9000

Statement II alone is sufficient to answer

From statement I and III

⇒ 2(L + B) = 90

⇒ L + B = 45

From statement I we have L = 1.7B

So, 1.7B + B = 45

⇒ 2.7B = 45

⇒ B = 45/2.7 = 450/27 = 50/3

Total cost of flooring the room = 1.7 × 50/3 × 50/3 × 20 = Rs. 9444.44

So, using statement I and III together we can find the answer

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