Mathematics WAEC Past Questions

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831

Solve the equation 2\(^7\) = 8\(^{5-x}\)

A. \(\frac{5}{8}\)
B. \(\frac{8}{3}\)
C. \(\frac{3}{2}\)
D. \(\frac{15}{4}\)

View Answer & Discuss (6) WAEC 2005

832

expand (2x-3y)(x-5y)

A. \(2x^2 + 13xy - 15y^2\)
B. \(2x^2 - 13xy - 15y^2\)
C. \(2x^2 + 13xy + 15y^2\)
D. \(2x^2 - 13xy + 15y^2\)

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833

Make f the subject of the relation \(v = u + ft\)

A. \(\frac{v-u}{t}\)
B. \(\frac{u-v}{t}\)
C. \(t(v+u\)
D. \(\frac{v}{u}-t\)

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834

The lengths of the adjacent sides of a right - angled triangle are xcm, (x-1)cm. If the length of the hypotenuse is \(\sqrt{13}cm\), find the value of x

A. 2
B. 3
C. 4
D. 5

View Answer & Discuss (4) WAEC 2005

835

The probability that John and James pass an examination are 3/4 and 3/5 respectively, find the probability of both boys failing the examination

A. \(\frac{1}{10}\)
B. \(\frac{3}{10}\)
C. \(\frac{9}{20}\)
D. \(\frac{11}{20}\)

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