Question

4 boys and 3 girls spent rs.120 each and boys spend rs.150 each.then find money spend by each girl

Answer 1

Given :-

Number of boys = 4, and
Number of girls = 3

Total number of children = 7

=> Total Money spent by 4 boys and 3 girls = 120 × 7 = Rs 840

$Let \: the \: money \: spent \: by \: each \\ \: boy \: \: be \: x \: and \: money \: spent \\ \: by \: each \: girl \: be \: y$
Then,

$ATQ \:$

$4x + 3y = 840 \\ = > 5 \times 140 + 3y = 840 \\ = > 3y = 840 - 600 \\ = > 3y = 240 \\ = > y = 80$

Hence, the money spent by each girl is Rs 80.