How much percent above the cost price should a dealer mark his goods so that after allowing a discount of 20%20% on the marked price, he gains 15%?15%?
Mikhail had his first child on his 22nd22nd birthday, his second child exactly 44 years later, and his third child exactly 44 years after that. How old was Mikhail when his age was equal to the sum of his three children's ages?
The wall is in the shape as shown below has to be painted. If one can of paint covers 8.5m28.5m2, how many cans of paint will be needed if only one coat of paint is applied?
of the principal. If the numbers representing the rate of interest (in percent) and time (in years) be equal, then what is the time, for which the principal is lent out?
The difference between the compound interest, compounded annually and the simple interest on a certain sum for 2years2years at 8%8% per annum is ₱448. Find the sum.
Natasha says, If Sevastian gives me ₱15, he will have half as much as Maksim. But, if Maksim gives me ₱15 then three of us will have the same amount. What is the total amount of money that Natasha, Sevastian, and Maksim have among themselves?