WAEC GCE General Mathematics Questions and Answer - Nov/Dec 2017 Expo Runz

**M****ATHS OBJ:**

**1CCAACBADAB**

11BCCCBBBBBB

21DDBDBCCCBA

31BDDDCCCCCD

41ACADADCDDC

PLS NOTE THIS SYMBOLS

^ means Raise to power

* means multiplication

√ means Sqr root

/ means division or divide

12a)

9x+10=28

9x=28-10

9x=18

x=18/9

x=2

-6x+4y=4

-6(2)+4y=4

4y=4+12

4y=16

y=16/4=4

13ai)

x*y=x+y+2xy

2*3=2+3+2*2*3

=5+12=17

(2*3)*5=17*5

17+5+2*17*5

=22+170=192

ii)x*7=x+7+2(x)(7)

=x+7+14x

=15x+7

x*5=x+5+2(x)(5)

=x+5+10x

=11x+5

(x*5)*2=(11x+5)*2

=11x+5+2+2(11x+5)^2

=11x+5+2+44x+20

=55x+27

15x+7=55x+27

15x-55x=22-7

-40x=20

x=-20/40=-1/2

2a)

A=P(1+r/100)^n

A=2,205,000

n=2

r=5%

p=?

2205000=p(1+5/100)^2

2205000m=p(1.05)^2

p=2205000/(1.05)^2=N2,000,000

2b)

area=30cm^2 h/b=3/2

area=1/2bh

b=2h/3

30=1/2*2h/3*h

2h^2=30*2*3

h^2=30*2*3/2

h^2=90

h=√90=9.49m

4)

area of shaded portion=area of sector pqs-area of triangle pqs

=(θ/360*pieR^2)-(1/2r^2sinθ)

(60/360*22/7*14^2)-(1/2*14^2sin60)

102.2667-84.8705

=17.796

=17.8cm^2

7a)

log6Y+2log6x=3

log6y+log6x^2=3

log6(x^y)=3

x^y=6^3

x^y=216

y=216/x^2

7bi)

CLICK HERE FOR No.7bi IMAGE

7bii)

percentage who liked football and volleyball but not boxing=20

ii)percentage who liked exactly two part=40+20+10=70

iii)summing

5+5+10+40+20+10+5+x=100%

x+95=100

x=100-95=5%

percentage who like none=5%

9a)

CLICK HERE FOR NO.9a IMAGE

9b)

|CA|^2=300^2+100^2-2(300)(100)cos 120degree

=9000+10000-60000(-cos60)

=100000+30000

KA|^2=130000

KA|=√130000

KA|=360.56KM

9bii)

Using sine rule

|AB|/sinC=|AC|/sin120

100/sinC=360.56

sinC=100sin60/360.56

sinC=0.2402

C=sin^-1(0.2402)=13.90degree

bearing=270+13.90=283.9degree = 284degree

1a)

[2(1/2)+1(3/4)/1(2/5)]/[2(1/4)-1(1/2)]

[5/2+7/4/7/5]/[9/4-3/2]

=[5/2+7/4*5/7]/[9/4-3/2]

[5/2+5/4]/[9/4-3/2]

=[(10+5/4)/(9-6/4)]

=(15/4)/(3/4)

=15/4*4/3

=5

1b)

From tan60/1*PR/3root2

PR=3root2*1/root3

=3root2/root3*root3/root3

=3root6/3=root6

From sin45/1*root6/x

x=root6*root2

=root12

=root4*3

=2root3

5a)

Daigrams

5b)

Median = ((N + 1) / 2)th item

Where:

N = 31

40, 40, 40, 40, 40, 40, 40, 41, 41, 41, 41, 42, 42, 42, 42, 42, 42, 43, 43, 44, 44, 44, 44, 45, 45, 46, 46, 46, 46, 46, 46

Data table

F 7 4 6 2 4 2 6

X 40 41 42 43 44 45 46

Median = ((31 + 1) / 2)th item

Median = (32 / 2)th item

Median = 16th item

Arranging the discrete data in ascending order, We go get:

40, 40, 40, 40, 40, 40, 40, 41, 41, 41, 41, 42, 42, 42, 42, 42, 42, 43, 43, 44, 44, 44, 44, 45, 45, 46, 46, 46, 46, 46, 46

Median = 42

CLICK HERE FOR NO.1,3,7 IMAGE

3)

2x/1 - 2/5 y = 2y/1

LCM = 5

10x - 2y = 10y

10x = 10y + 2y

10x = 12y

X = 12y/10 -------------1

2x - 2/5y + 2 1/4x + 1/2y + 2y = 180

LCM = 20

40x - 8y + 45x + 10y + 40y = 3600

40x + 45x + 10y - 8y + 50y = 3600

95x + 42y = 3600

95 (6y/5) + 42y =3600

19(6y) + 42y = 3600

114y + 42y = 3600

156y = 3600

Y = 3600/156

Y = 23.08

Sub for y in eq 1

X = 6(23.08)/5

X = 27.69

11)

A={4,5,6,7,8,9,10,11,12}

B={10,11,12,13,14,15,16,17,18,19,20,21,22,23,24}

M={4,8,12,11,6,20,24,28}

a)prob (A)=3/7

b)prob( B)=7-4/7=3/7

c)prob(AuB)=n(AuB)/n(m)

but (AuB)={4,8,12,11,6,20,24,}

prob(AuB)=6/7

**GOODLUCK!!!**

=========================

**Expospy.com posts all exam expo answer earlier than others**
============================

**GOODLUCK!!!**
**Verified WAEC GCE 2017 Mathematics question WAEC GCE Free 2017/2018 Mathematics & Practical Questions and answers have been posted FOR FREE OOOO 2017/2018 WAEC GCE Mathematics ANSWERS NOW AVAILABLE. ANSWERS NOW POSTED BY ADMIN. CLICK BELOW IMAGE FOR THE ANSWERS NOW. WAEC GCE 2017/2018 verified maths/ Questions and Answers Here (Mathematics ) WAEC GCE Mathematics expo,WAEC GCE 2017 Mathematics answers, FREE Mathematics ans for WAEC GCE, see WAEC GCE expo questions for free, correct Mathematics ans,Mathematics answers runz runs expo free real and correct WAEC GCE 2017 Mathematics free expo runz runs ans answers online for freee see free answers online. WAEC GCE 2017 Mathematics expo 2017/2018 WAEC GCE Free Mathematics Answers have been posted Mathematics 2017 WAEC GCE EXAMINATION EXPO/ANSWER RUNZ RUNS PracticalECTIVES . KINDLY COMMENT “ I NEED IT ” IN THE COMMENT BOX BELOW. REAL WAEC GCE Geography QUESTIONS & ANSWERS Direct To … RE: 2017/2018 WAEC GCE SSCE Mathematics (Expo) WAEC GCE 2017/2018 certified Mathematics questions and answers WAEC GCE MAY JUNE 2017 Mathematics QUESTION AND EXPO I need WAEC GCE Ssce free expo site, how can I get the answer for, Congratulation to Those who Sub For Previous Subjects and Received KINDLY COMMENT “ I NEED IT ” IN THE COMMENT BOX BELOW. Their Answers 6 Hours before Exam Mathematics. WAEC GCE Mathematics expo, 2017 WAEC GCE Mathematics, WAEC GCE Mathematics ans, answers/questions Mathematics WAEC GCE 2017 Mathematics Answers – June/July Expo Mathematics..**
We appreciate you for reading our post, but we think it will be better you like our facebook fanpage and also follow us on twitter below.