1. A bookshelf holds 80 books each 4 cm thick. How many books can the bookshelf
contain if each book is 6.4 cm thick?
2. A zookeeper has enough feeds for 20 birds for 20 days. If 5 more birds were added,
how long will the same feeds last?
3. Ten men can finish a task in 7 days. How long will it take 5 men to do the same task?
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contain if each book is 6.4 cm thick?
2. A zookeeper has enough feeds for 20 birds for 20 days. If 5 more birds were added,
how long will the same feeds last?
3. Ten men can finish a task in 7 days. How long will it take 5 men to do the same task?
Paki-sagot po ng maayos
Answers & Comments
Answer:
1.) 50 books
2.) 16 days
3.) 14 days
Step-by-step explanation:
1.) length of book shelf = 80 x 4cm = 320cm.
6.4cm book that can fit = 320cm / 6.4cm = 50 books
2.) Let x be the days
20 birds · 20days = 25 birds (x)
x = 20(20)/25
x = 16 days
3.) let x be the days
10men ( 7 days) = 5men (x)
x = 10(7) / 5
x = 14 days