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How to do the third question on page 52 of the math classroom exercise book in the second volume of grade four?
Solution: Let the black rabbit be X and the white rabbit be X+ 16.

X+ 16*X=3

X+ 16 =3X

16 =3X-X

16 =2X

X = 16*2

X =8

8+ 16=24 (only)

Answer: There are 8 black rabbits and 24 white rabbits.

Note: * = division symbol

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