Math Riddle 1Version en ligne Very hard par Roogie Green 1 I am a multiple of 3. Hints 1 I am an even number. 2 I'm a positive number 3 If you add -18 to me, I will remain a positive number 4 15 doesn't go evenly into 100, but it goes evenly into me. 5 If y - 40 equals 8/16 of 1 full cupcake written in %, then I am y. 6 If you subtract me from 100, the answer is less than 20. 7 Take the average life expectancy in Italy and round to the nearest whole number. Then subtract -7. Your answer would be me.