(a) Find the smallest integer that satisfies the inequality . (b) A sales girl is paid a monthly salary of N2,500 in addition to a commission of 5 kobo in the naira on all sales made by her during the month. If her sales for a month amounts to N200,000.00, calculate her income for that month. (c) The diagram shows a window consisting of a rectangular and semi- circular parts. The radius of the semi- circular part is 35 cm and the height of the rectangular part is 50 cm. Find the area of the window. [Take ].
Explanation
(a) . (b) Extra income = 5k of N200,000 = = Total income = Monthly income + commission = N(2,500 + 10,000) = N12,500. (c) Area of semi- circle = = = Length of rectangular part = 50 cm Breadth = Diameter of semi- circle = 2(35 cm) = 70 cm Area of rectangular part = = = Total area of window = =
