CBSE 10th SA 2 2011 Mathematics Solved Exam Paper
MATHEMATICS SOLVED PAPER
CBSE SA – 2
SUBJECT :- MATHEMATICS
CODE – 3
SECTION – A
- – (A) – r
- - (C) – 10/13
- - (A) – 13
- - (B) – 3
- - (C) – 25
- - (A) – 8A
- - (C) – 140o
- - (D) – 35O
- - (C) – 15
- - (A) – m, m+3
SECTION – B
11. a = 203, d = 7, l = 497,
a + (n-1) d
or 203 + (n-1) 7 = 497
or 203 + 7n – 7 = 497
or 7n + 196 = 497
or 7n = 497 – 196
or 7n = 301
n = 301 / 7
= 43
12. Total no. of ticket = 40
No. of ticket is multiple of 5 = 8
P (getting ticket multiple of 5) = 8/40
= 1/5
13. root (11-3) square + (y+1) square = 10
root over (8) square +(y+1) square = 10
root over (64) + (y square + 1+2y) = 10
root over y square + 2y + 65 = 10
squaring both sides ,
y square + 2y + 65 = 100
y square + 2y – 35 = 0
y square + 7y – 5y – 35 = 0
y (y + 7) – 5 (y + 7) = 0
(y + 7) (y – 5) = 0
y = -7, y = 5
14. volume of cube = 27 cm cube
a cube = 3 cm
surface area of 1 cube = 6 a square
= 6*9
= 54 cm square
surface area of both cubes = 2*54
= 108 cm square
area of square = side square
= 3 square
= 9 cm square
surface area of resulting cuboid = 108-9
= 99 cm square
16. as we know that,
AB + CD = AD + BC
6 + 8 = AD + 9
14 = AD + 9
AD = 14-9
AD = 5 cm
18. area of triangle = 1/2* base * height
= 1/2 *14*24
= 7*24 = 158 cm square
area of quadrant = 1/4*22/7 * 7*7
= 5.5*7 = 38.5 cm square
area of sector = 22/7 *7*7*45/360
= 19.25 cm square
area of shaded region = 158 – 38.5 + 19.25
= 158 – 57.75
= 101.25 cm square
19. PA = PB
PA square = PB square
root over (6 – 3) square + (5-y) square
More Sample papers
Tags: solved exam paper
hello sir….please send me the link how can i have the question paper of CBSE board..as i m giving local which are from 24th and the board exams are getting over till that date…..
where is the question paper?i want the CBSE board paper whose exams held on 5th march…and papers of hindi,english ,science and s.sc…i m giving local which are startin from 24th march..and untill that board paper will get over….please reply on my email…prior 24th…plz…thank you
i want maths 10 sa2 solved board exam paper code 1 fully…….
i want 10 sa2 solved exam paper of any code
i want sa2 solved exam paper
i want immediately paper
I want the cbse sa2 2011 mathematics solved question paper of all the codes.could u please get it 4 me b4 16th march?
explain sex- ratio
hello sir!!! pls send me the link where i can get full cbse board maths paper held on 5th march 2011 thank you!!!!!!
where is the question?
moss singe means
sir please send me a website where i get cbse board exam paper solution
You can get question paper from cbse.nic.in