i took 1/2 the coins fron bank,and later put 10 in then took 1/3 out and later put 2 in,then took 1/2 out?

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i took 1/2 the coins fron bank,and later put 10 in then took 1/3 out and later put 2 in,then took 1/2 out?

leaving 11 coins in how many coins were there in the bank to begin with ?

2007-10-18 13:32:57 · 2 answers · asked by matthew p 2 in Education & Reference ➔ Words & Wordplay

2 answers

Build the formula slowly in sections.

1/2( 2/3 ( 1/2(x) + 10 ) + 2 ) = 11

The important thing is to pay attention to what is left, not what is taken.

2007-10-21 14:37:36 · answer #1 · answered by frodo 6 · 0⤊ 0⤋

started with 40.

40,20,30,20,22,11

2007-10-18 20:45:12 · answer #2 · answered by hottotrot1_usa 7 · 0⤊ 0⤋