X+Y =12 এবং X-Y =8 হলে XY এর মান কত?
X+Y =12 এবং X-Y =8 হলে XY এর মান কত? Correct Answer 20
x+y = 12 x-y = 8(Doing Addition), we get, 2x = 20 or, x= 10(Doing Subtraction), we get, 2y = 4 or, y= 2So, xy = 10*2 = 20 (Ans)X+Y =12 এবং X-Y =8 হলে XY এর মান কত? Correct Answer 20
x+y = 12 x-y = 8(Doing Addition), we get, 2x = 20 or, x= 10(Doing Subtraction), we get, 2y = 4 or, y= 2So, xy = 10*2 = 20 (Ans)