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Questions(2178)

If height of the sphere and slant height of the cone are equal, then find the ratio of their radii, when they have equal surface areas.

view details (1 answer)Pipes A and B can fill a tank in $5$ and $6$ hours respectively. Pipe C can empty it in $12$ hours. If all the three pipes are opened together, then the tank will be filled in:

view details (1 answer)$x$ and $y$ togther buy a car at $₹2,50,000$ and sells it at $₹3,00,000.$ At the time of purchase if the ratio of capitals of $x$ and $y$ is $2:3,$ then find the profit share of $y$ ?

view details (1 answer)The cost price of three types of cashew nuts are $₹482, ₹578$ and $₹698$ per kg respectively in what proportion this should be mixed so that the mixture cost $₹566$ per kg?

view details (1 answer)If a shopkeeper frauding $20\%$ to buy and $20\%$ to sell, then overall profit is

view details (1 answer)You deposited $\$12000$ into a bank account paying $1.5\%$ simple interest per month. You left the money in for $210$ days. Find the interest earned and the amount at the end of those days

view details (1 answer)If a sum of money compounded annually becomes $1.44$ times of itself in $2$ years then the rate of interest per annum is

view details (1 answer)A contractor estimates that he can have the building construction completed in $40$ days by employing $15$ workers. After $12$ days of work, the work is paused for a week since he runs out of the building materials. How many workers must he add so that the building construction can be completed in time?

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