08/05/2020 Senior Class IGCSE Mock Exams(Mathematics) 08/05/2020 0Comments by Gate Academy Please, fill out the information below to continue. NAME E,MAIL PHONE NUMBER 1. Evaluate: 27.63² - 22.37² 27.7 241.3 263.0 189.0 2. If xy + 1 = y² and z= (1/x) - (1/xy), express z in terms of y 1/ x-y 1/ y-1 1 + y 1/ y+1 3. If y is a positive number, for what values of y is 4 + 3y < 10 ? 1 < y < 2 0 < y < 2 y < 2 0 > y > 2 4. The marks scored by students in a test are recorded in the table belowCalculate semi interquartile range 2 1 0 3 5. The probability of obtaining a prime number in a single toss of fair die is 1/2 1/6 1/3 1/4 6. The universal set U contains all integers. Subsets of U are defined asP = {x : x ≤ 3}Q = {x : -5 < x < 12}R = {x : -2 ≤ x < 5}Q ∪ R = ? P Q R' R 1 out of 6 Time is Up! Time's up