24 girls worked for 3 days and complete in 1/5 of it.20 boys work for next 10 days and complete 2/5 of it.if after 13 days from start of work,24 girls and 20 boys work together,how many days will they take to complete the remaining work?

2 answers

girls do 1/15 per day (1/5 / 3) ... 5/75

boys do 1/25 per day (2/5 / 10) ... 3/75

there is 2/5 remaining ... 30/75
Still didn't know about that answer please clarify this