MBA Exam

How many natural number less than 1000 are such that when they are divided by16,the result is a perfect fifth power and when are multiplied by 8,the result is a perfect fourth power?

With explanation please

1) None
2) 1
3) 2
4) 3

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MBA Other Question

Explain approach too

1) 22/12
2) 22/13
3) 24/13
4) 20/13
On a Rs. 10,000 payment order, a person has choice between 3 successive discounts of 10%, 10% and 30% and 3 successive discounts of 40%, 5% and 5%. By choosing the better one he can save (in Rupees) :

1) 200
2) 255
3) 400
4) 433