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5672 . সমাধান করুনঃ ax - cy = 0 ay - cx = a2 - c2
- A. x = a, y = c
- B. x = c, y = a
- C. x = - c, y = a
- D. x = c, y = - a
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5673 . সমাধান করুনঃ {√(x - 1) + √(x - 6)}/{√(x - 1) - √(x - 6)} = 5
- A. x = 1
- B. x = 6
- C. x = 7
- D. x = 10
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5674 . সমাধান করুনঃ x - y = 2a ax + by = a2 + b2
- A. x = 2a, y = 0
- B. x = a, y = b
- C. x = a - b, y = a + b
- D. x = a + b, y = b - a
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5675 . ৭% হারে কত বছরে ৩০০০ টাকার সুদ ৪২০ টাকা হবে?
- A. ৮
- B. ২০
- C. ১৫
- D. ২
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5676 . {√5 + √(5 - x)}/{√5 - √(5 - x)} = 5 হলে, x এর মান কত?
- A. 25/9
- B. 16/3
- C. 15/4
- D. 25/7
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5677 . সমাধান করুনঃ x/3 - 2/y = 1, x/6 + 4/y = 3
- A. (2, 3)
- B. (3, 2)
- C. (6, 2)
- D. (2, 6)
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5678 . 3/(y + 1) = 4/(y - 2) সমীকরণে y এর মান কত?
- A. - 10
- B. 3/4
- C. 4/3
- D. 10
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5679 . x/2 + y/3 = 1, x/3 + y/2 = 1 উপরিউক্ত সমীকরণ দু'টি থেকে (x, y) এর মান কত?
- A. (6/5, 6/5)
- B. (3/6, 3/6)
- C. (2/3, 2/3)
- D. (1/2, 1/2)
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5680 . 15x - 9 = 11x - 25 হলে x এর মান কত?
- A. x = 2
- B. x = 9
- C. x = - 4
- D. x = 4
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5681 . x/5 + 4 = 3x/10 + 6 এর সঠিক সমাধান কোনটি?
- A. x = 15
- B. x = 10
- C. x = - 20
- D. x = - 20
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5682 . x/2 - x/3 = x/5 - 1/6 এর সঠিক সমাধান কোনটি?
- A. x = 15
- B. x = 2
- C. x = 10
- D. x = 5
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5683 . (x + 1) (x + 2) = (x + 4) (x - 2) এর সঠিক সমাধান কোনটি?
- A. x = - 5
- B. x = 5
- C. x = 10
- D. x = - 10
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5684 . 6(2x + 3) = 14x এর সঠিক সমাধান কোনটি?
- A. 4
- B. 6
- C. 9
- D. 12
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5685 . 5(2x - 1) = 4(2x + 1) + 7 এর সঠিক সমাধান কোনটি?
- A. x = 32
- B. x = 16
- C. x = 8
- D. x = 4
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