CBSE Class 10 Mathematics Standard Previous Year Question Paper 2020 Set 1

CBSE Board Paper Solution-2020

Class : X

Subject : Mathematics (Standard) -

Theory

Set : 1

Code No : 30/5/1

Time allowed : 3 Hours

Maximum Marks : 80 Marks

General instructions:

Read the following instructions very carefully and strictly

follow them:

(i) This question paper comprises four sections – A, B, C

and D. This question paper carries 40 question All

questions are compulsory

(ii) Section A: Question Numbers 1 to 20 comprises of

20 question of one mark each.

(iii) Section B: Question Numbers 21 to 26 comprises of

6 question of two marks each.

(iv) Section C: Question Numbers 27 to 34 comprises of

8 question of three marks each.

(v) Section D: Question Numbers 35 to 40 comprises of

6 question of four marks each.

(vi) There is no overall choice in the question paper.

However, an internal choice has been provided in 2

question of the mark, 2 question of one mark, 2

questions of two marks. 3 question of three marks

and 3 question of four marks. You have to attempt

only one of the choices in such questions.

(vii) In addition to this. Separate instructions are given

with each section and question, wherever necessary.

(viii) Use of calculations is not permitted.

Section A

Question numbers 1 to 20 carry 1 mark each.

Question numbers 1 to 10 are multiple choice questions.

Choose the correct option.

1. On dividing a polynomial p(x) by x2 – 4,

quotient and remainder are found to be x and 3

respectively. The polynomial p(x) is

(A) 3x2 + x - 12

(B) x3 -4x + 3

(C) x2 + 3x - 4

(D) x2 - 4x - 3

Answer:

Correct Answer: (B) x3 –4x+3

Explanation:

P(x) = (divisor)×(quotient) + Remainder

=(x2 – 4)x+3

= x3 – 4x+3

2) In Figure-1, ABC is an isosceles triangle, right-

angled at C. Therefore