passpadi

2007

Mathematics

JAMB

The pie chart above illustrate the amount of private time a student spends in a week studying various subjects. Find the value of k

A.

90°

B.

60°

C.

30°

D.

40°

Correct Answer: 30°

Explanation

K + 5K + 3K + 75 + 105 = 360 (at a point) 6K + 180 = 360 6K = 360 - 180 6K = 180 k = 180/6 = 30°

K + 5K + 3K + 75 + 105 = 360 (at a point) 6K + 180 = 360 6K = 360 - 180 6K = 180 k = 180/6 = 30°
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