For the following questions answer them individually
If $$A = 20 \times 50$$ and $$B = 20 \times 3$$ then what is the value of $$A \times B$$ ?
What is the value of $$[(0.7)^3 + (0.3)^3] \div [(0.7)^2- (0.7\times0.3) + (0.3)^2]?$$ ?
P and Q together complete a work in 8 days. Q and R together complete a work in 16 days and R and P together complete the same work in 8 days. In how many days P, Q and R together can complete the wok?
U and V can complete a piece of work in 6 and 48 days respectively. They contracted to complete the work for Rs 45,000. What will be the share (in Rs) of U?
The height of two cylinders are equal and their radius are in the ratio of 1 : 3 respectively. What is the respective ratio of the volume of the two cylinders?
An article having marked price of Rs 4300 is sold at a discount of 17%. What is the selling price (in Rs) of the article?