Q1. Spider's WebUnsolvedUsing hints is now penalty freeUse HintWhat is the day on which a spider's web, which doubles in size every day, will be 25% complete, given that the spider takes 15 days to completely build the web?Choose the correct answer from below:Your score for this problem will be decided based on your FIRST SUBMISSION ONLY7th day9th day11th day13th day

If 7 spiders make 7 webs in 7 days, then 1 spider will make 1 web in how many days?17/2749Clear selection

If 9 spiders make 9 webs in 9 days, then 13 spiders will make 13 webs in how many days?

Select the correct answerA work can be completed by P and Q in 12 days, Q and R in 15 days, R and P in 20 days. In how many days alone P can finish the work?Options10 days30 days60 days20 days

A crossword puzzle is published in The Times each day of the week, except Sunday. A man is able to complete on average 8 out of 10 of the crossword puzzles.Find the probability that in a period of 10 weeks, he completes at least 5 puzzles each week for less than 6 weeks.Read Less0.2370.6550.03280.472

If A is 25% as efficient as B and can complete a certain work taking 15 days more than the time taken by B, in how many days will both A and B together complete the work?4 days5 days7 days10 days