how many numbers are there below 1000 which are neither perfect square nor perfect cube?
A) 961
B)958
c)955
D) not remb
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Answer:
squares 1 to 31 are less than 1000. and cube of 1 to 9. total numbers = 31+9 =40 but there are numbers like 1 and 64 which are perfect squares and a perfect cubes. so 40-2= 38
999-38= 961
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