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

355kg

240kg

350kg

none of these

2. A and B are in the radio of 5:4,B and in the ratio of 3:2.what is the ratio of A:C ?

15:17

16:17

17:18

none of these

3. 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

4. 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

5. 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

6. 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

7. A manufacturer finds that 0.4% of his production is defective and unsuitable for marketing.How many of 1000 untis produced will be rejected.

4

40

400

100

8. There boys have marbels in the ratio of 19:5:3 if the boy with the least number of marbles has 9 marbles,how many marles does the boy with the greatest number have ?

57

15

77

93

9. ভাষা প্রকাশ বাঙ্গালা ব্যাকরণ কে রচনা করেন ?

ঈশ্বরচন্দ্র বিদ্যাসাগর

সুনীতিকুমার চট্রোপ্যাধায়

মুহম্মদ শহীদুল্লাহ

মুহম্মদ এনামুল হক

10. পদাবলী ‘ র প্রথম কবি কে ?

শ্রীচৈতন্য

বিদ্যাপতি

চন্ডীদাস

জ্ঞানদাস