Question

Instead of divided rs.40 among a,b,c in the ratio 2:3:4 by mistak it was divided in the ratio 7:2:5

Answer 1

$sum \: of \: the \: ratios \: = 7 + 2 + 5 \\ = 14 \\ therefore \: a \: will \: get \: \\ 7 \div 14 \times 40 \\ = 20rs \\ b \: will \: get \: \\ 2 \div 14 \times 40 \\ = 5.71rs \\ c \: will \: get \: \\ 5 \div 14 \times 40 \\ = 14.29rs$