A gang of criminals hijacked a train heading due south. At exactly the same time, a police car located 50 miles north of the train started driving south toward the train on an adjacent roadway parallel to the train track. If the train traveled at a constant rate of 50 miles per hour, and the police car traveled at a constant rate of 80 miles per hour, how long after the hijacking did the police car catch up with the train?

1.The ratio of the number of freshmen to sophomores to juniors to seniors on a College football team is 4:7:6:8. What percent of the team ar sophomores?

Bangladesh University of Professionals (BUP) · 2016

2.What is the cost in taka to put tiles in a room of x yards long and y yards wide, if the tile costs 10 taka per square foot?

Bangladesh University of Professionals (BUP) · 2016

3.If joe is now x years old and Marie is 6 years older than joe, which of the following gives Marie's age 8 years ago?

Bangladesh University of Professionals (BUP) · 2016

4.How many meters of fencing are needed to enclose a circular flower bed the radius of which is 7 meters?

Bangladesh University of Professionals (BUP) · 2016

5.if the average of p and q is 7 and r=13, what is the average of p,q and r ?

Bangladesh University of Professionals (BUP) · 2016

6.8% of 0.06= ?

Bangladesh University of Professionals (BUP) · 2016

7.How many prime numbers are there between 45 and 72?

Bangladesh University of Professionals (BUP) · 2016

8.if x = -1 then ( x$^4$ +x$^3$ +x$^2$ ) = ?

Bangladesh University of Professionals (BUP) · 2016

9.A trader incurs a loss of 10% from selling an item. If the selling price was Tk. 200 more, he would have made a profit of 15%. What was the cost of the item?

Bangladesh University of Professionals (BUP) · 2016

10.If the price of an item increases from Tk. 5 to Tk. 8 , the old price is what % of the new price?

Bangladesh University of Professionals (BUP) · 2016

11.Three years back, a father was 24 years older than his son. at present the father is 5 $\times as old as the$ son. How old will the son be three years from now?

Bangladesh University of Professionals (BUP) · 2016

12.In a certain group, 12 of the children average are age 10 and eight are age 15 . What is the average of the ages of all the children in the group?

Bangladesh University of Professionals (BUP) · 2016