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a man has 5 friends and he wants to invite 3 of them in how many ways can he do this if two of friends refuse to attend party

A can of water and milk mixture contains 60% milk. A part of this mixture is replaced by another mixture containing 50% milk and the percentage of milk was found to be 52%. The quantity of mixture replaced is ?

4096,1024,512,384, _ ,480,720

After allowing a discount of 10% on its marked price, the value of a mobile phone is

Rs. 20,250. If no discount is allowed, then the shopkeeper gains 20%. The cost price of the mobile phone is

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If cot A = 15/8, then what will be the value of tan 2 A?

If cot A = 15/8, then what will be the value of tan 2 A?

how can I delete the question if I posted in below the video explanation

is it available in hindi medium??

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