For the following questions answer them individually
The average marks obtained by a group of 11 students is 53 and the average marks obtained by another group of 13 students is 48. What is the average marks obtained by all 24 students (approximately)?
The selling price of a car is Rs. 640. If the car is sold at a discount of 60 percent, then what will be the marked price of the car?
A shopkeeper sold a flower pot for Rs. 3500. If the cost price of the flower pot is Rs.2800. find the profit percent.
If 30 percent of E is equal to 60 percent of F, then what is the value of E : F?
What is the value of $$1.4 \times 1.4 + 1.2 \times 1.2 + 1.3 \times 1.3$$?
What is the value of $$\frac{144}{33}$$ of $$\frac{11}{22} - \frac{132}{13}$$ of $$\frac{52}{12}$$?
What is rate of simple interest at which a sum of money becomes three times of itself in 34 years?
Find the value of $$12 \times 5 \times 3 \div [129 - 69]$$.
P sells a chair to Q at a profit of 40 percent and Q sells it to Ra t a profit of 80 percent What is the ratio of cost prices of P and R ?
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