Mathematics JAMB Past Questions

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941

A car travels from calabar to Enugu, a distance of P km with an average speed of U km per hour and continues to benin, a distance of Q km, with an average speed of Wkm per hour. Find its average speed from Calabar to Benin

A. \(\frac{(p + q)}{pw + qu}\)
B. \(\frac{uw(p + q)}{pw + qu}\)
C. \(\frac{uw(p + q)}{pw}\)
D. \(\frac{uw}{pw + qu}\)

View Answer & Discuss (3) JAMB 1991

942

If w varies inversely as \(\frac{uv}{u + v}\) and is equal to 8 when

u = 2 and v = 6, find a relationship between u, v, w.

A. uvw = 16(u + v)
B. 16ur = 3w(u + v)
C. uvw = 12(u + v)
D. 12uvw = u + v

View Answer & Discuss JAMB 1991

943

If g(x) = x² + 3x + 4, find g(x + 1) - g(x)

A. (x + 2)
B. 2(x + 2)
C. (2x + 1)
D. (x² + 4)

View Answer & Discuss (2) JAMB 1991

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944

Factorize \(m^3 - 2m^2\) - m + 2

A. (m² + 1)(m - 2)
B. (m - 1)(m + 1)(m + 2)
C. (m - 2)(m + 1)(m - 1)
D. (m² + 2)(m - 1)

View Answer & Discuss (5) JAMB 1991

945

Factorize 1 - (a - b)²

A. (1 - a - b)(1 - a + b)
B. (1 + a - b)(1 - a + b)
C. (1 - a + b)(1 - a + b)
D. (1 + a + b)(1 + a + b)

View Answer & Discuss (3) JAMB 1991

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