Mathematics NECO Past Questions

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If the mean of 3, 5, 8, k, 14 and 17 is 11, what is the value of k

A. 58
B. 38
C. 19
D. 11
E. 967

View Answer & Discuss (2) NECO 2001

From the kip of a storey-buliding, the angle of depression of a mango on a tree 20 m away from the base of the storey-building is 68°. if the mango is 4.5 m above the ground, what is the height of the storey-building to the nearest metre?

A. 55m
B. 54m
C. 50m
D. 49m
E. 45m

View Answer & Discuss (5) NECO 2001

The mean age of 12 boys involved survey is 19 years, 3 months. lf the-age of one of the boys is 22 years, what is the mean age of the other-boys?

A. 10.5 years
B. 19.0 years
C. 35.4 years
D. 264.0 years
E. 423.5 years

View Answer & Discuss (2) NECO 2001

If cos x = - \(\frac{5}{13}\) where 180° < X < 270°, what is the value of tan x -sin x ?

A. \(\frac{111}{13}\)
B. \(\frac{321}{65}\)
C. -\(\frac{216}{65}\)
D. \(\frac{112}{13}\)
E. \(\frac{131}{65}\)

View Answer & Discuss (8) NECO 2001

Given that (3 - y) ÷ 2x = (6y + 7) ÷ (4x - 5), find the value of x when y = 2

A. \(\frac{64}{5}\)
B. 6
C. \(\frac{5}{34}\)
D. \(\frac{-5}{34}\)
E. \(\frac{-64}{5}\)

View Answer & Discuss (1) NECO 2001

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