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Subject Mathematics
1351. The sum of two numbers is146 and difference between them is 18. What are the numbers?
1352. On sports day, if 30 children were made to stand in a column, 16 columns could be formed. If 24 children were made a stand in a column, how many columns could be formed?
1353. The number of students in each section of a school is 24. After admitting new students, three new sections were started. Now, the total number of section is 16 and there are 21 students in each section. How many new students were admitted?
1356. The average age of 30 students is 10 years and that of another group of 5 of them is 14 years. What is the average age of the remaining students?
1361. Of 30 applicant for a job 14 had at least 4 years’ experience. 18 had degrees, and 3 had less than 4 years’ experience and did not have a degree. How many of the applicants had at least 4 years’ experience and a degree?
1362. Laboni bought a 1year, Tk. 10,000 certificate of deposit that paid interest at an annual rate of 8 percent compounded semiannually. What was the total amount of interest paid on this certificate maturity?
1364. The present ratio of students to teachers at a certain school is 30 to 1. If the student enrollment were to increase by 50 students and the number of teachers were to increase by 5, the ratio of students to teachers would then be 25 to 1. What is the present number of teachers?
1367. A certain river has a current of 3 miles per hour. A boat takes twice as long to travel upstream between two points as it does to travel downstream between the same two points. What is the speed of the boat in still water?
3 miles per hour
6 miles per hour
9 miles per hour
12 miles per hour
The speed cannot be determined from the given information.
1369. The cost, in taka, of manufacturing x microwaves is 6000 + 300x taka. The amount received when selling these x microwaves is 700x taka. What is the least number of microwaves that must be manufactured and sold so that the net profit is Tk. 2400?
1370. The larger of two number exceeds twice the smaller number by 9. The sum of twice the larger and 5 times the smaller number is 74. If a is the smaller number, which equation below determines the correct value of a?