Question

Attempt any four of the following subquestions:
181
Grid 'n' if the nth term of the following A.P. is 66:3, 6, 9, 12,
If onc of the roots of the qundratic equation X-7s+k=0 is 4, then find the value of k.
A box contains 20 cards marked with numbers 1 to 20. One card is drawn at random. Write the
event A using the number on the card is multiple of 4. Write S, n(S). A and n(A).
iv. Find the value of x-yil 3r + 2y = 15, 2x + 3y 10.
For the quadratic equation if its roots are 3 and 4.
vi.
For u certain frequency distribution, the values of men and mediu are 72 and 78 respectively.
Find the value of mode.
Attempt any Three of the following subquestions:​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

The answer of the question which u have asked is nariyal

Because the outer covering is black but its inner surface is white