Mathematics 2008 NECO Past Questions

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Twenty girls and y boys sat on an examination. The mean marks obtained by the girls and boys were 52 and 57 respectively. if the total score for both girls and boys was 2750, find y.

A. 51
B. 48
C. 30
D. 25
E. 18

View Answer & Discuss (1) NECO 2008

A sector of angle 120° is cut out from a circle of radius 13.5cm. what area of the circle is remaining ? (π = \(\frac{22}{7}\))

A. 14.1cm²
B. 95.5cm²
C. 190.9cm²
D. 381.9cm²
E. 763.7cm²

View Answer & Discuss (7) NECO 2008

Two ladders of length 5m and 7m lean against a pole and make angles 45° and 60° with the ground respectively. What is their distance apart on the pole correct to two decimal places?