I am < 3+7 If you add 2 to me you get the number > 10 Who am I ?
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1
Let the number be n.
According to the question, 7n+50+40=300
⇒7n+90=300⇒7n=300−90
⇒7n=210⇒n=
7
210
⇒n=30
Thus, the required number is 30.
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