Multiple choice If 7 spiders make 7 webs in 7 days, then 1 spider will make 1 web in how many days? 10 7 8 9 Reveal answer Fill a bubble to check yourself B Correct answer Explanation Using the formula (M1*D1)/W1 = (M2*D2)/W2, we have (7*7)/7 = (1*D2)/1. This simplifies to 7 = D2.