View Answer
|
|
Report
|
|
1637 . If xy>0 and yz<0, which of the following must be negative?
- A. xyz
- B. xyz2
- C. zy2z
- D. xy2z2
View Answer
|
|
Report
|
|
View Answer
|
|
Report
|
|
1639 . If x-y=2 and xy=80. What is the value of x3-y3?
- A. 520
- B. 488
- C. 380
- D. 466
View Answer
|
|
Report
|
|
1640 . যদি (x-y)2=14 এবং xy=2 হলে x2+y2=কত?
- A. ১২
- B. ১৪
- C. ১৬
- D. ১৮
View Answer
|
|
Report
|
|
View Answer
|
|
Report
|
|
View Answer
|
|
Report
|
|
1643 . এর মান __
- A. 2
- B. 1
- C. xyz
- D. y
View Answer
|
|
Report
|
|
1644 . 3x-7y+10=0 এবং y-2x-3=0 এর সমাধান ----
- A. x=1, y= -1
- B. x=1, y= 1
- C. x=-1, y= -1
- D. x=-1, y= 1
View Answer
|
|
Report
|
|
View Answer
|
|
Report
|
|
1646 . 15-5x=24-8x কে সমাধান করলে x- এর মান হবে-
- B. 2
- C. 3
- D. -3
View Answer
|
|
Report
|
|
1647 . A father is 32 years older than the son. In 7 years the father's age will be 5 years more than twice that of the son. The age of the father, 3 years from now , will be
- A. 45 years
- B. 55 years
- C. 65 years
- D. 75 years
- E. 85 years
View Answer
|
|
Report
|
|
1648 . যদি x+5y=24 এবং x=3y হয়, তাহলে y = কত?
- A. 2
- B. 3
- C. 4
- D. 5
View Answer
|
|
Report
|
|
1649 . x-y=1, xy=56 হলে x+y= কত?
- A. ১৬
- B. ১৫
- C. ২২৫
- D. ২২১
View Answer
|
|
Report
|
|
1650 . If x+y =9 and x-y =5, the value of 4xy is :
- A. 24
- B. 56
- C. 28
- D. 32
- E. 18
View Answer
|
|
Report
|
|