Two identical taps fill 2/5 of a tank in 20 minutes.when one of the taps goes dry n how many minutes will the remaining one tap fill the rest of the tank?

If the value of ZYZ company stock drops from Tk. 25 per share to Tk. 21 per share , what is the percent of the...

If a building "b' feet high casts a shadow 'f' feet long , then , at the same time of day, a tree 't' feet hig...

A portion of the 7,200 is invested at a 4% annual return , while the remainder is invested at a 5% annual retu...

An empty swimming pool can be filled to capacity through an inlet pipe in 3 hours, and it can be completely dr...

At 10 a.m. two trains started travelling toward each other from stations 287 miles apart. They passed each oth...

If a rectangle's length and width are both doubled, by what percent is the rectangle's area increased?