A certain type of mixture is prepared by mixing brand A at Rs.9 a kg. with brand B at Rs.4 a kg. If the mixture is worth Rs.7 a kg., how many kgs. of brand A are needed to make 40kgs. of the mixture?
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What is the probability of getting a sum 9 from two throws of a dice?
Alok and Bhanu play the following min-max game. Given the expression N = X - Y – Z where X, Y and Z are variables representing single digits (0 to 9), Alok would like to maximize N while Bhanu would like to minimize it. Towards this end, Alok chooses a single digit number and Bhanu substitutes this for a variable of her choice (X, Y or Z). Alok then chooses the next value and Bhanu, the variable to substitute the value. Finally Alok proposes the value for the remaining variable. Assuming both play to their optimal strategies, the value of N at the end of the game would be • 4 • -18 • 9 • 2
Rajdhani Express starts from Delhi at 12:00 pm and reaches Chandigarh at 2:30 pm and Doronto Express starts from Chandigarh at 12:15 and reach at Delhi at 2:15 . What will be the time when both the trains will cross each other?
HOW + MUCH = POWER Then P + O + W + E + R =
it has 20 mixutre conatins mil and water in the ratio 3:5,replace 4 litres of mixture with 4 litres of water what is the final ratio of milk and water.
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Everyday in his business a merchant had to weigh amounts from 1 kg to 121kgs, to the nearest kg.What are the minimum number of weight required and how heavy should they be?
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the difference between two no is 9 and the product of the two is 14 what is the square of their sum?
Find the value of @@+25-++@1..., where @ denotes "square" and + denotes "square root".
for cube and sphere 3 views are similarly draw one such figure?