Question

1. For simultaneous equations in x and y, if D. - 25, D = 50, D =5, then what is th
(A) -5
(B)
(C) 10
(D) 5
3
2
2
5
5
2. For simultaneous equations in x and y, if D=30, D. =-18, D, = -12, then wha
(A) - B (C)
3. Which of the following is a quadratic equation?
Зу 2
(A) 11 -5x2 + x (B)
--- +7 (C) 4x2 +3/-2 = 0 (D) y(y + 2) = 12 +3;
5
4 у
4. What is the value of the discriminant for 25x2 - 15x +=0?
9
4
(A) 225
(B) 450
(C)
(D) - 225
5. Which of the following is the sum of the first 20 natural numbers?
(A) 200
(B) 400
(C) 420
(D) 210
for an A.P. d = 10, what is the value of to-t?
.) 10
(B) 20
(C) 30 (D) 40
7. The rate of GST on bread is
(A) 5%
(B) 12%
(C) 0%
(D) 18%​

Answer 1

Answer:

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Step-by-step explanation: