The pipes can fill a cistern in 1.5 hours and 2 hours respectively. A wste pipe can empty a full cistern in 3 hours. If the cisternis empty and all three pipes are opened together, in how many min will the cistern be half full

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VOLUNTEER TRAINING FOR DISADVANTAGED IN MATHS – QUESTION 15 : A motel cleaner has 8 master keys at home to open all the rooms in a large motel. Each room can be opened by just 1 of these keys. If 40 % of the rooms are left unlocked, what is the probability that the cleaner can get into a specific room if he selects 3 keys at random before leaving home to go to work? (A) 5 / 8, (B) 5 / 16, (C) 31 / 40, (D) 3 / 20, (E) 19 / 40.

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Give a situation where Mathematics can be correlated with economics

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Explain the role of induction, intuition and logical reasoning in Mathematics.

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Give any one situation where ICT can be used in teaching Mathematics.

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State and prove sufficient condition for differentiability of the function f(x,y).

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can i get model papers for the interview for the post of scientist/engineer'SC' at isro

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Converse of this theorem is: if the sum of the squares of two sides of a triangle equal the square of the third side then the triangle is a right triangle. What is the name of the theorem?

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in what time will RS. 3200 amount to RS.3528 at 5% annum compound interest

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the cordinates of A,b,c are respectively (2,3) ,(4,4) AND (0,-2). If abcd is a parallelgram. The coordinates of D are

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You have to weigh sugar from 1 Kg to 40 Kg weight in integers using pan balance. What are the 4 minimum weights required for this?

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can you tell me the digit sum(digit sum of 1789=1+7+8+9=25=2+5=7) of p=13258*15784*32547*36587*4304 you have 3mintz to do it.

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