Your teacher has a total of 16 chalks. When a chalk reduces to 1/4 of its original size, it gets too small for her to hold for writing and hence she keeps it aside. But your teacher hates wasting things and so, when she realizes that she has enough of these small pieces to join and make another chalk of the same size, she joins them and uses the new chalk stick. If she uses one chalk each day, how many days would the 16 chalks last?
Answers
Answered by
0
Answer:
20 days..
Step-by-step explanation:
She uses 1 chalk each day then 16 chalks out of 16 days but every day chalk reduces to 1/4 of its original size and after 4 days almost 1 chalk wastes similarly 4 chalks wastes within 16 days but as she heart waste so she will use these 4 chalks in 4 days ......so in (16+4 equals) 20 days 16 chalks will lasts...
Similar questions