Question 1043318
Let {{{ x }}} number of rs. 3.50 tickets sold
{{{ 340 - x }}} = number of rs. 1.80 tickets sold
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{{{ 3.5x + 1.8*( 340 - x )  = 1088 }}}
{{{ 3.5x + 612 - 1.8x = 1088 }}}
{{{ 1.7x = 476 }}}
{{{ x = 280 }}}
and
{{{ 340 - x = 340 - 280 }}}
{{{ 340 - x = 60 }}}
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280 rs. 3.50 tickets were sold
60 rs. 1.80 tickets were sold
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check:
{{{ 3.5x + 1.8*( 340 - x )  = 1088 }}}
{{{ 3.5*280 + 1.8*60  = 1088 }}}
{{{ 980 + 108 = 1088 }}}
{{{ 1088 = 1088 }}}