In a row trees is 7 th from the left and 14% from the right end. how many trees are there in the row?

P works twice as fast Q. If Q can complex a work in 12 days independently, the number of days in which P and Q...

A husband and wife have six married sons. Each of them has four children. The total number in the family is___...

A gas tank is 1/5 th full and requires 32 gallons to make it 3/7 full. What is the capacity of the tank?

If the salary of an emplyees is reduced by 10 percent for has late attendance and them increased by 10 percent...

35% of Nabil's is equal to 25% of Saila's income. The ratio their income is

The simple interest on a of money will be tk. 600 after 10 years. if the principle is treble after 5 years, wh...