Question

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Que.1: A) For every subquestion four alternative answers are given. Choose the
correct answer and write the alphabet of it.
(4)
i) If 3x + 4y = 11 and 4x + +3y = 10, find the value of (x + y).
A) 11
B) 21
D) 10
ii) Which of the following is not a quadratic equation?
A) x2
B)5 x2 = 90
C) x2 + 4x = 11 + x2
D) 2x - x2 = x2 + 5
C) 3
4x
iii) What is the probability of the event that a number chosen from 1 to 50 is a
odd number?
A)
B)
D)
-3
C)
10
iv) Which of the following is the sum of the first 20 natural numbers?
A) 210
B) 221
C) 420
D) 400
) Solve the following subquestions. ​

Answer 1

Answer:

3 is not a quadratic equation