smallest number 3

Find the smallest number which when divided by 79 and 97 leaves 37 and 73 respectively as remainders.

magic square 4

Forty five of the numbers from 1 to 81 have been placed in the  9x9 grid given below.

	12		60		74		45
30	40	53		11		63	68	73
	71		29		52		10
15		2		81		44		31
	47		18	23	1		76
65		61		46		13		3
	9		80		67		34
54	32	37		4		79	56	69
	55		49		39		6

             Fill in the remaining numbers in such a way that the sum of nine numbers in every horizontal row, every vertical column, each corner to corner diagonal and every 3x3 box is 369 

magic square sudoku 8

A partially filled 16x16 grid is given below.

4					6					8					2
	10			16							14			12
		13					11	9					15
			7			1			3			5
			1			7			5			3
		11					13	15					9
	16			10							12			14
6					4					2					8
	14			12							10			16
8					2					4					6
			3			5			7			1
		9					15	13					11
		15					9	11					13
			5			3			1			7
2					8					6					4
	12			14							16			10

     

    

GIANT SUDOKU 16x16

Fill in the grid with numbers from 1 to 16 in such a way that every row,every column ,every 4x4 box,each corner to corner diagonal accommodates numbers 1 to 16 without repeating any. Also,each 4x4 box is a magic square of order 4.