a group of people participate in some curriculum , 35 of them practice yoga , 20 study cooking , 15 study weaving , 7 of them study cooking only , 5 of them study both the cooking and yoga , 3 of them participate all curriculums . how many people study both cooking and weaving ?
"both cooking and weaving = 20 - ( 7 + 5 + 3 ) = 5 so , the correct answer is e ."
subtract(subtract(subtract(20, 5), 3), 7)