A fan is listed at Rs. 150 with a discount of 20% . What additional discount must be offered to the customer to bring the net price to Rs. 108 ?
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Two numbers are in the ratio 2:5 and their HCF is 18. Their LCM is
A solid cube has side 8 cm. It is cut along diagonals of top face to get 4 equal parts. What is the total surface area (in cm2) of each part?
A vendor buys 6 bananas for Rs 25 and sells them at 3 for Rs 20. What is his profit percentage?
Sum of cubes of first n even natural numbers.
Proof of Sum of cubes of first n even natural numbers ::
Hence, in other words, the sum of the first n cubes is the square of the sum of the first n natural numbers.
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Select the odd word from the given alternatives.
If cosec2 θ = 625/576, then what is the value of [(sin θ – cos θ)/(sin θ + cos θ)]?
If ab = 21 and a+b2a-b2 = 254,then the value of a2+b2+3ab
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