# Mathematics Solved Past Paper 9th Class 2014 Karachi Board

SECTION “A” (COMPULSORY)(M.C.Q.S)

1. Choose the correct answer for each from the given options:

(1) √9x√9=—
* 9
* 81
* 18
* None of these

(2) 35 x 34x 3-³ = —-
* 312
* 360
* 38
* 36

(3) The sum of measures of three angles of a triangle is —-
* 90°
* 360°
* 190°
* 180°

(4) Formula of Arithmetic mean is ——-
(a) ∑X
(b) ∑fx
(c) f
(d) ∑fx/n

(5) A proportion has —- terms.
* 4
* 3
* 2
* 1

(6) Set {2,3,S,—-} is a set of ———
* natural no.
* even no.
* odd no.
* prime no.

(7) If log³ x = 4, x = ——
* 12
* 34
* 81
* 100

(8) The characteristics of log 68.79 is ——-
* 1
* 2
* 2
* none of these

(9) —— is the number repeated frequently in a given data.
* mean
* median
* mode
* none of these

(10) Two angles whose arms are two pairs of opposite rays are called ——– angles.
* vertical
* complementary
* supplementary

(11) The arithmetic mean of 4,4,0, -4, -4, is ——–
0
* 4
* -4
* 12

(12) Circumference of a circle is ——-

* πr²
* 2πr
* πr²/2
* πr

(14) Rate of Zakat = ——
* 5/2%
* 3/2%
* 5%
* 7%

(16) (a + b) – (a – b)2 = ———
* a² – b²
* a² + b²
* 2(a² + b²)
* 4ab

(17) The set {0, 1} has closer property w.r.t.
* subtraction
* Multiplication
* Division

(18) (x + 5)(x – 5) = ———–
* x² – 25
* x² – 5
* x² + 5
* (x – 5)

(19) In a right angled triangle, opposite side of the right angle is called ———
* base
* perpendicular
* Hypotenuse
* none of these

(20) In decimal system 135 = ——
* 8
* 12
* 5
* 7

NOTE: Answer 10 questions from this section.

Question no.2

Question no.3

Question no.4

Question no.5

Question no.6

Question no.7

Question no.8

Question no.9

Question no.10

Question no.11

Question no.12

Question no.13

(14) Find median of 1,3,6,3,5,4,3,1,4,3.

Arranging in ascending order
1,1,3,3,3,4,4,5,6
Median is 3

Question no.15

Question no.16

NOTE: Answer 3 questions from this Section

Question no.17

(18) A person dies leaving behind him a ‘Tarka’ worth Rs.30,000. Distribute the Tarka among 4 sons and 3 daughters. So that each Daughter gets half of what a son gets. Find the share of each when a debt of Rs.8,000 is also paid from Tarka

Amount of Tarka = 30,000
Amount of Debt = 8,000
Number of sons = 4
Number of daughter = 3
Each son gets twice that of a daughter.
SOLUTION:
Amount left after paying back debt = 30,000 – 8,000 = 22,000
Suppose each daughter gets Re.1
Suppose each son gets Rs.2
3 daughters get 3 x 1 = 3 Rs.
4 sons get 4 x 2 = 8 Rs.
Total amount = 3 + 8 = 11
Share of 3 daughters = 22,000 x 3/11
= 6,000
So each daughter gets = 6,000/3 = Rs.2,000
Share of 4 sons = 22,000 x 8/11
= 16,000
Share of each son = 16,000/4 = Rs.4,000
Hence,
Share of each daughter = Rs.2,000
Share of each son = Rs.4,000

Question no.19

Question no.20

Question no.21(a)

21(b) Find median of 1,3,6,3,5,4,3,1,4,3.