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Mathematics Past Questions

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50 questions JAMB 2359 WAEC 1853 NECO 179 POST_UTME 6 CUSTOM 10

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50 questions

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Question 21

waec 2004

The angle of elevation of the top of a tower from a point on the ground which is 36m away from the foot of the tower is 30^o. Calculate the height of the tower.

A62.35m

B20.78m

C18.00m

D10.39m

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Question 22

waec 2004

Simplify \(7\frac{1}{2}-\left(2\frac{1}{2}+3\right)\div16\frac{1}{2}\)and correct your answer to the nearest whole number

A33

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Question 23

waec 2004

There are m boys and 12 girls in a class. What is the probability of selecting at random a girl from the class?

A\(\frac{m}{12}\)

B\(\frac{12}{m}\)

C\(\frac{12}{m+12}\)

D\(\frac{12}{m-12}\)

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Question 24

waec 2004

Find the value of x in the diagram

A10^o

B28^o

C36^o

D44^o

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Question 25

waec 2004

In the diagram, R\(\hat{P}\)Q = Q\(\hat{R}\)Y, P\(\hat{Q}\)R = R\(\hat{Y}\)Q, |QP| = 8 cm, |QY| = 4 cm, and |RY| = 5 cm. Find |QR|.

A2.0cm

B2.5cm

C6.4cm

D10.0cm

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Question 26

waec 2004

A school girl spends \(\frac{1}{4}\) of her pocket money on books and \(\frac{1}{3}\) on dress. What fraction remains?

A\(\frac{5}{6}\)

B\(\frac{7}{12}\)

C\(\frac{5}{12}\)

D\(\frac{1}{6}\)

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Question 27

waec 2004

Solve for t in the equation \(\frac{3}{4}t+\frac{1}{3}(21-t)\) = 11,

A\(\frac{9}{13}\)

B\(\frac{9}{5}\)

D\(9\frac{3}{5}\)

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Question 28

waec 2004

Given that sin (5x - 28)^o = cos (3x - 50)^o,0 < x < 90^o, find the value of x

A14^o

B21^o

C32^o

D39^o

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Question 29

waec 2004

If \(y = 23_{five} + 101_{three}\), find y, leaving your answer in base two

A1110

B10111

C11101

D111100

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Question 30

waec 2004

1. Evaluate \( 202^2_{three} - 112^2_{three}\)

A21120

B21121

C21112

D21011

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