2018 - JAMB Mathematics Past Questions and Answers - page 4
31
\(\frac{0.00256 \times 0.0064}{0.025 \times 0.08}\)
A
8.8 x 10\(^{-1}\)
B
8.8 x 10\(^{-2}\)
C
8.8 x 10\(^{-3}\)
D
8.8 x 10\(^{3}\)
32
Two sisters, Taiwo and Kehinde, own a store. The ratio of Taiwo's share to Kehinde's is 11:9. Later Kehinde sells \(\frac{2}{3}\) of her share to Taiwo for N720.00. Find the value of the store
A
N1,080.00
B
N2,400.00
C
N3,000.00
D
N3,600.00
33
A room is 12m long, 9m wide and 8m high. Find the cosine of the angle which a diagonal of the room makes with the floor of the room
A
\(\frac{15}{17}\)
B
\(\frac{9}{17}\)
C
\(\frac{8}{15}\)
D
\(\frac{12}{17}\)
34
Divide the L.C.M of 48, 64 and 80 by their H.C.F
A
20
B
30
C
48
D
60
35
Find the equation of the line through (5,7) parallel to the line 7x + 5y = 12
A
5x + 7y = 20
B
7x + 5y = 70
C
xy = 7
D
15x + 17y = 90
36
A man's initial salary is N540.00 a month and increases after each period of six months by N36.00 a month. Find his salary in the eight month of the third year.
A
N828.00
B
N756.00
C
N720.00
D
N684.00
37
A man stands on a tree 150cm high and sees a boat at an angle of depression of 74°. Find the distance of the boat from the base of the tree.
A
52cm
B
43cm
C
40cm
D
15cm
38
Integrate the expression 6x\(^2\) - 2x + 1
A
3x\(^3\) - 2x\(^2\) + x + c
B
2x\(^3\) - x\(^2\) + x + c
C
2x\(^3\) – 3x\(^2\) + c
D
x\(^3\) + x\(^2\) – x + c
39
In how many ways can the letters LEADER be arranged?
A
72
B
144
C
360
D
720
40
In the figure shown, /MX/ = 8cm, /XN/ = 12cm, /NZ/ = 4cm and ∠XMN = ∠XZY. Calculate /YM/
Â
A
32cm
B
24 cm
C
16 cm
D
12 cm
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