MBA Exam Numerical Ability Time and Work

What is remainder we get 1000/300.

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MBA Other Question

1/1.4+1/4.7+1/7.10+1/10.13+1/13.16=???

please do not solve by elemintry method.... try to solve in shortcut and let me know your best shortcut method.
How many words can be formed by using 4 letters at a time out of the letters of the word MATHEMATICS?