KA-0151●○○3 points, difficulty 1 of 33 ptLevel 7–8not yet calibratedA bread recipe uses flour and sugar in the ratio 5 to 3. The two together weigh 320 grams. How much of that is flour?NUM-11Ratio as parts of a wholealso CFT-01, CFT-10
KA-0152●○○3 points, difficulty 1 of 33 ptLevel 7–8not yet calibratedIn a triangle, one angle measures 30 degrees. Of the other two angles, one is exactly twice the other. What is the largest angle in the triangle?GEO-05Angles on lines, in triangles, in polygonsalso MOD-01, CFT-02
KA-0153●○○3 points, difficulty 1 of 33 ptLevel 7–8not yet calibratedA jacket costs 80 pounds. In January the price rises by 20 percent. In February the new price falls by 20 percent. What is the price at the end of February?NUM-10Percentages and simple discountsalso CFT-11, CFT-10