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Module Progress: Simple Interest and Profit/Loss (G8)

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Simple Interest and Profit/Loss (G8)

question 1 of 11 Grade: Eight - G8
question 1 of 11 Grade: Eight - G8

Q: Mapulamba is paid K20.00 per hour for a 30 hour week and the rate of overtime is 'double rate'. Calculate his total wage in a week in which he worked for 40 hours.

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Convert to base 10: 214₅ = 2×25 + 1×5 + 4 = 50+5+4=59₁₀. 32₅ = 3×5 + 2 = 17₁₀. Product = 59 × 17 = 1003₁₀. Convert to base 5: 5⁴=625, 5³=125, 5²=25, 5¹=5, 5⁰=1. 1003 ÷ 625 = 1 remainder 378; 378 ÷ 125 = 3 remainder 3; 3 ÷ 25 = 0 remainder 3; 3 ÷ 5 = 0 remainder 3; units 3. So digits: 1,3,0,0,3 => 13003₅.

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Convert to base 10: 214₅ = 2×25 + 1×5 + 4 = 50+5+4=59₁₀. 32₅ = 3×5 + 2 = 17₁₀. Product = 59 × 17 = 1003₁₀. Convert to base 5: 5⁴=625, 5³=125, 5²=25, 5¹=5, 5⁰=1. 1003 ÷ 625 = 1 remainder 378; 378 ÷ 125 = 3 remainder 3; 3 ÷ 25 = 0 remainder 3; 3 ÷ 5 = 0 remainder 3; units 3. So digits: 1,3,0,0,3 => 13003₅.

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