For the following questions answer them individually
A boat can go 40 km downstream and 25 km upstream in 7 hours 30 minutes. It can go 48 km downstream and 36 km upstream in 10 hours. What is the speed (in km/h) of the boat in still water?
The total surface area of a solid metallic hemisphere is 462 $$cm^{2}$$. This is melted and moulded into a right circular cone. If the radius of the base of the cone is the same as that of the hemisphere, then its height is: (use $$ \pi = \frac{22}{7}$$)
Study the following table carefully and answer the questions based on it.
The following table shows the domestic sales of vehicles of four manufacturers from 2010 to 2015.
With respect to which of the following combinations, is the sales of vehicles highest over the given period?
In a two-candidate election, 10% of the voters did not cast their ballots. 10% of the votes cast were found invalid. The winning candidate received 54% of the valid votes and a 1620-vote majority. Find the number of people on the voter list who have registered to vote.
In a shop, a discount of 8% is provided. If the total payable after discount is more than ₹5,000 and additional discount of 20% is provided, then determine the final amount to be paid by customer, if he buys 12 products each of price ₹750.
What will be the actual profit percentage (rounded off to nearest integer) after selling an article at a certain price, while there occurs a loss of 45% on selling the article at $$\frac{3}{8}$$ of the selling price?
Which of the following is the value of $$\sqrt{\frac{1-\sin 45^{\circ}}{1+\sin 45^{\circ}}}$$?
If $$\left\{(b- x) \times (x^{3} -2x^{2} ) + (4^{3} + 2^{5}) \times x\right\}+ 25 = 1$$, then the possible values of xis/are: