Question

find the smallest number by which 68600 must be multiplied to get a perfect cube.20. find the compound interest on Rs.4000 for 2 years at the rate of 10 percent per annum compounded anually
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Answer 1

Step-by-step explanation:

68600=2×2×2×5×5×7×7×7

So, 68600 is not a perfect cube to make it a perfect cube we multiply it by 5.

68600×5=2×2×2×5×5×5×7×7×7=343000, which is a perfect cube.