At 9:00 a. m. the train Surmal left station and two hours later the train. Titas left the same station on a parallel track in the same direction. If Surma averaged 60 kilometers per hour and Titas averaged 75 kilometers per hour, at what time did Titas pass Surma?

During a month, Jalil used 1/6 of his monthly salary for a car payment and an amount which is 1.25 times more...

If Sabbir requires 5 minutes to make a box and Zoha requires 7 minutes to make a box, what will be the number...

A truck driver must complete a 180-mile trip in 4 hours. If he average 50 miles an hour for the first three ho...

Babul weighs twice as much as Akther. Akhter's weighs is 60% of Salam's weight. Ashraf weighs 50% of Hasan's w...

The sum of the three consecutive odd numbers exceeds twice the largest number by 6. What is the sum of the thr...

Maruf's net income is always 80 percent of his gross income. What will be increase in Maruf's net income when...