Q11: Lines AB, CD & MK intersect at point O. ∠AOC = 70°, ∠MOB = 15°. Find the measures of angles DOK, AOM & COB.
Q17: Logical Olga wrote a 3-digit number. She, then, added up all its digits to form a 2-digit number and wrote down the answer. Continuing to add up the digits of the 2-digit number, she formed a 1-digit decimal and wrote it down. All three numbers are written below using shapes. Note that when the digits were the same, so were the shapes. Try to figure out which shape stands for which number. Write the values for each number, separated by commas.