For the following questions answer them individually
The average weight of X, Y and Z is 74 kg. If the average weight of X and Y be 68 kg and that of Y and Z be 78 kg, then the weight (in kg) of Y is
Of the 3 numbers whose average is 26, the first is $$\frac{2}{11}$$ times the sum of other two. The first number is:
The average weight of a class of 50 students is 48.6 kg. If the average weight of the 20 boys is 54 kg, then find the average weight (in kg) of the girls in the class.
A trader buys jowar at Rs 30 per kg. 20% of the grain gets wasted. He plans to sell the remaining grain so that he makes 40% overall profit. At what price (in Rs per kg) should he sell the grain?
If a vendor sells a watermelon at Rs 69 he makes 8% loss. If he wants to make 16% profit then at what price (in Rs) should he sell?
The cost of 25 items is the same as the revenue earned by selling x items. Find x, if the profit made in the transaction is 25%.
An item is sold for Rs 7130 making a 15% profit. What is the cost price (in Rs) of this item?
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