Neco 2019 Mathematics Question 1

Practice essay / theory question 1 from the 2019 Neco Mathematics examination. This question covers Number and Numeration, Divisibility, Chinese Remainder Theorem .

Neco 2019 Mathematics Essay / Theory

Topics: Number and Numeration Divisibility Chinese Remainder Theorem

Question 1 NECO • 2019 • MATHEMATICS • essay

A natural number N leaves a remainder of 2 when divided by 5, a remainder of 3 when divided by 7, and a remainder of 4 when divided by 9.

Question Parts

( a )

Find the smallest such N.

( b )

Determine the greatest common divisor (GCD) of N and 126.

( c )

If N is increased by 30, what is the least number that must be subtracted to make the result divisible by 12?

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About This Question

This is Neco 2019 Mathematics Question 1. It is one of the essay questions from the 2019 Neco Mathematics examination.

The question covers Number and Numeration, Divisibility, Chinese Remainder Theorem .

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