1. On a trip of 200 miles a man travels at the rate of 40 miles per hour for the first 100 miles for the rest of the trip,he travels at the rate of 55 miles per hour.what is his average speed in miles per hour for the total trip ?

400/9

200/9

90

None of these

2. A man can cross 10 miles distance of a river in favor of the stream in 2 hours. He can come back against the stream along the same way is 5 hours.what is the average speed in miles per hour,for the entire trip ?

20/7

41189

41100

1110

3. One kilogram is equal to :

2.21 Ibs

2.00 Ibs

2.32 Ibs

1.98 Ibs

4. An ore contains 26% of copper,to get 91kgs of copper the quantity of are required is

355kg

240kg

350kg

none of these

5. How many minute will it take police car to travel a distance of d miles if it travels at m mile per hour ?

60/dm

d/m

dm/60

60 d/m

6. How many minute will it take police car to travel a distance of d miles if it travels at m mile per hour ?

60/dm

d/m

dm/60

60 d/m

7. A company increases every year salary of an officer by 20%.his salary in the year 2001 was tk 26,640.what was his salary in 1999 ?

tk 20,000

tk 19,028

tk 18,500

tk 18,840

8. How much will it cost to fence in a field that is 12 feet long and 42 feet wide with fence that cost $ 10 a yeard ?

$180

$360

$504

$540

9. A train passes city X at 9.55 am and city Y at 10.15 am.The distance between cities X and Y is 45 miles.What is the average speed,in miles per hour of the train ?

90

135

120

270

10. A circular flower bed has diameter 4m.The flowers bed is increased so that the diameter is now 12m.How many times larger is the new flower bed ?

9

3

6

12