question archive (a) John invested GH?4,000
(a) John invested GH?4,000
Subject:MathPrice: Bought3
(a) John invested GH?4,000.00 for a year, part at 7% per annum and part at 9% per annum. The interest on the investment is GH?300.00. How much did John invest at each rate?
(b) If GH?400.00 is deposited at a bank at 10% per annum compounded quarterly, how long will it take the deposit to double in value?
(c) A bowl collects 1.67 cm height of water in its first week in a dewdrop. Each week the height of the water increases by 4% more than it did the week before. By how much does it increase in nine weeks, including the first week?
