### EDUCATION

# 100% CORRECT 2020 WAEC MATHS ANSWERS HERE!

# 2020 WAEC MATHEMATICS ANSWERS HERE!

#### 2020 MATHEMATICS WAEC QUESTIONS:

2020 WAEC MATHEMATICS ANSWERS

(1a) Given A={2,4,6,8,…} B={3,6,9,12,…} C={1,2,3,6} U= {1,2,3,4,5,6,7,8,9,10}A’ = {1,3,5,7,9}B’ = {1,2,4,5,7,8,10} C’ = {4,5,7,8,9,10}A’nB’nC’ = {5, 7}(1b) Cost of each premiere ticket = $18.50At bulk purchase, cost of each = $80.00/50 = $16.00Amount saved = $18.50 – $16.00=$2.50

(2ai)

P = (rk/Q – ms)⅔

P^3/2 = rk/Q – ms

rk/Q = P^3/2 + ms

Q= rk/P^3/2 + ms

(2aii)

When P =3, m=15, s=0.2, k=4 and r=10

Q = rk/p^3/2 + ms = 10(4)/(3)^3/2 + (15)(0.2)

= 40/8.196 = 4.88(1dp)

(2b)

x + 2y/5 = x – 2y

Divide both sides by y

X/y + 2/5 = x/y – 2

Cross multiply

5(x/y) – 10 = x/y + 2

5(x/y) – x/y = 2 + 10

4x/y = 12

X/y = 3

X : y = 3 : 1

(5a)

Total income = 32+m+25+40+28+45

=170+m

PR(²)=m/170+m = 0.15/1

M=0.15(170+m)

M=25.5+0.15m

0.85m/0.85=25.5/0.85

M=30

(5b)

Total outcome = 170 + 30 = 200

(5c)

PR(even numbers) = 30+40+50/200

=115/200 = 23/40

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**Also read: **Waec 2020 Practical Specimens