Supplementary Number Problems...1

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1. correct
2.correct.
3.

x=4(90-x) will give you an answer of greater part, and you need other part too

separate 90 in 2 parts so that one part is 4 times the other part
so, let one part be x, then we know that the other part is 4x

then
90=x+4x
5x=90
x=18->one part
the other part is 4x=4*18=72

=>90=18+72

4. correct
5. correct
 
1. correct
2.correct.
3.

x=4(90-x) will give you an answer of greater part, and you need other part too

separate 90 in 2 parts so that one part is 4 times the other part
so, let one part be x, then we know that the other part is 4x

then
90=x+4x
5x=90
x=18->one part
the other part is 4x=4*18=72

=>90=18+72

4. correct
5. correct

Hey, 4 out of 5 is not bad at all.
 

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