Friend Name |
$A$ |
$B$ |
$C$ |
$D$ |
$E$ |
$F$ |
$G$ |
$H$ |
$I$ |
$J$ |
${\color{Blue} {TOTAL\ MONEY}}$ |
Money Contributed |
$x$ |
$x$ |
$x$ |
$x$ |
$x$ |
$x$ |
$x$ |
$x$ |
$x$ |
$x$ |
$10x$ |
I and J didn't gave the money
Friend Name |
$A$ |
$B$ |
$C$ |
$D$ |
$E$ |
$F$ |
$G$ |
$H$ |
${\color{red} {TOTAL\ MONEY}}$ |
Money Contributed |
$x+150$ |
$x+150$ |
$x+150$ |
$x+150$ |
$x+150$ |
$x+150$ |
$x+150$ |
$x+150$ |
$8(x+150)$ |
${\color{Blue} {TOTAL\ MONEY}}$ = ${\color{red} {TOTAL\ MONEY}}$
$\Rightarrow\ 10x\ =\ 8(x+150)$
$\Rightarrow\ 10x\ =\ 8x + 1200$
$\Rightarrow\ 2x\ =\ 1200$
$\Rightarrow\ x\ =\ 600$
so , TOTAL MONEY $=10x=6000$