(1) If 2x + 3y = 4, 3x - y = 6
(2) A student draws a line and says that it is 10cm long. Whay is the % error in the drawing if the true length is 10.2cm
(3) convert 77 to a number in base 2
(4) The bearing of two points Q and R from a point are 030 degree and 120 degree respectively. If |PQ| = 12m and |PR| = 5m, find the distance |QR|
(5) How many times, correct to the nearest whole number, will a man run round a circular track of diameter 100m to cover a distance of 1000m
