For the following questions answer them individually
If the radius of the base and the slant height of a cone are 17cm and 25 cm respectively, then what is the total surface area of the cone?
A and B together can do a piece of work in 21 days. B and C together can do it in 24 days. A and C together can do it in 33 days. In how many days approximately will A, B and C finish it together?
The average of 11 numbers is 7.5. What should be the 12th number added to them to make the average 8.5?
Find the fourth proportional of 3 hours 20 minutes, 1 hour 50 minutes, and 6 hours 20 minutes.
A ream of 500 pages is bought for ₹280, and packets of 25 pages are made from it. Each packet is sold for ₹18. Find the percentage profit or loss. (Rounded off up to one decimal place).
A and B together can do a piece of work in 20 days, while B alone can finish it in 25 days. How many days will A take to complete the same work alone?
A woman gains 30 percent by selling an article for a certain price. If she sells it at double price, then the profit made is :
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