CAD [1] Answer (a) When they returned to Singapore 3 weeks later, Jeffrey had CAD 230 left which he (b) changed back into Singapore dollars. The exchange rate at this time was CAD 1 to SGD 1.23. Calculate the amount of Singapore dollars he received. SGD [1] Answer (b) Evaluate when = and = a b −1 −2. 10 (a) [1] Answer (a) Given that + = 13 and = 6, find the value of + (b) x2 y2 xy x y. [2] Answer (b) 11 In the diagram, is a parallelogram and is perpendicular to ABCD CE AB. Find (a) ∠EBC,
Answer (a) CAD [1] (b) When they returned to Singapore 3 weeks later, Jeffrey had CAD 230 left which he changed back into Singapore dollars. The exchange rate at this time was CAD 1 to SGD 1.23. Calculate the amount of Singapore dollars he received. Answer (b) SGD [1] 10 (a) Evaluate when a = −1 and b = −2. Answer (a) [1] (b) Given that x2 + y2 = 13 and xy = 6, find the value of x + y. Answer (b) [2] 11 In the diagram, ABCD is a parallelogram and CE is perpendicular to AB. Find (a) ∠EBC,