Susan made a block with small cubes of 8 cubic cm volume to make a block ,3 small cubes long, 9 small cubes wide and 5 small cubes deep. She realizes that she has used more small cubes than she really needed. She realized that she could have glued a fewer number of cubes together to lock like a block with same dimensions, if it were made hollow. What is the minimum number of cubes that she needs to make the block?

• In yesterdat's qn After every hour a number increases 15 % of its present value. How many times it will increase in 8 hours The number will become 3 times but increase will be 3-1=2 times. Pls check and correct the answer.
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