Question 988019
Average cost/ litre = {{{ ( 10*1.9 + 12*1.8 + 8*2.05 ) / ( 10 + 12 + 8 ) }}}
{{{ ( 19 + 21.6 + 16.4 ) / 30 }}}
{{{ 57 / 30 = 1.9 }}}
Average cost/ litre = rs 1.90