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CBSE Class 12-science Answered

Q1.There are 3 families.First family consists of 2 men members,4 female members and 3 children.Second family consists of 3 male membera,3 female members and 2 children.Third family consists of 2 men members,2 female members and 5 children.Each male members earns Rs 500 andspends Rs 300 per day.Each female members earns Rs 400 per day and spends Rs250 per day.Each chidren members spends Rs40 per day.Using matrics,find the amount of money each family saves per day.
Asked by surendersial | 11 Mar, 2016, 10:03: PM
answered-by-expert Expert Answer
begin mathsize 12px style bold S bold a bold v bold i bold n bold g bold space bold p bold e bold r bold space bold e bold a bold c bold h bold space bold m bold a bold l bold e bold space bold m bold e bold m bold b bold e bold r bold equals bold 500 bold minus bold 300 bold equals bold 200 bold S bold a bold v bold i bold n bold g bold space bold p bold e bold r bold space bold e bold a bold c bold h bold space bold f bold e bold m bold a bold l bold e bold space bold m bold e bold m bold b bold e bold r bold equals bold 400 bold minus bold 250 bold equals bold 150 bold S bold a bold v bold i bold n bold g bold space bold p bold e bold r bold space bold e bold a bold c bold h bold space bold c bold h bold i bold l bold d bold equals bold minus bold 40 bold L bold e bold t bold space bold u bold s bold space bold d bold e bold f bold i bold n bold e bold space bold a bold space bold c bold o bold l bold u bold m bold n bold space bold m bold a bold t bold r bold i bold x bold space bold S bold space bold a bold s bold space open square brackets table row bold 200 row bold 150 row cell bold minus bold 40 end cell end table close square brackets bold. bold D bold e bold f bold i bold n bold e bold space bold a bold n bold o bold t bold h bold e bold r bold space bold m bold a bold t bold r bold i bold x bold space bold w bold i bold t bold h bold space bold n bold u bold m bold b bold e bold r bold space bold o bold f bold space bold m bold e bold m bold b bold e bold r bold s bold space bold i bold n bold space bold e bold a bold c bold h bold space bold f bold a bold m bold i bold l bold y bold. bold M bold equals open square brackets table row bold 2 bold 4 bold 3 row bold 3 bold 3 bold 2 row bold 2 bold 2 bold 5 end table close square brackets bold L bold e bold t bold space bold s bold a bold v bold i bold n bold g bold space bold f bold o bold r bold space bold e bold a bold c bold h bold space bold f bold a bold m bold i bold l bold y bold space bold i bold s bold space bold g bold i bold v bold e bold n bold space bold b bold y bold space bold t bold h bold e bold space bold e bold l bold e bold m bold e bold n bold t bold s bold space bold o bold f bold space bold t bold h bold e bold space bold m bold a bold t bold r bold i bold x bold space bold F bold equals open square brackets table row cell bold F subscript bold 1 end cell row cell bold F subscript bold 2 end cell row cell bold F subscript bold 3 end cell end table close square brackets bold M bold S bold equals bold F bold rightwards double arrow open square brackets table row bold 2 bold 4 bold 3 row bold 3 bold 3 bold 2 row bold 2 bold 2 bold 5 end table close square brackets open square brackets table row bold 200 row bold 150 row cell bold minus bold 40 end cell end table close square brackets bold equals open square brackets table row cell bold F subscript bold 1 end cell row cell bold F subscript bold 2 end cell row cell bold F subscript bold 3 end cell end table close square brackets bold rightwards double arrow open square brackets table row cell bold 2 bold cross times bold 200 bold plus bold 4 bold cross times bold 150 bold plus bold 3 bold cross times bold minus bold 40 end cell row cell bold 3 bold cross times bold 200 bold plus bold 3 bold cross times bold 150 bold plus bold 2 bold cross times bold minus bold 40 end cell row cell bold 2 bold cross times bold 200 bold plus bold 2 bold cross times bold 150 bold plus bold 5 bold cross times bold minus bold 40 end cell end table close square brackets bold equals open square brackets table row cell bold F subscript bold 1 end cell row cell bold F subscript bold 2 end cell row cell bold F subscript bold 3 end cell end table close square brackets bold rightwards double arrow open square brackets table row bold 880 row bold 970 row bold 500 end table close square brackets bold equals open square brackets table row cell bold F subscript bold 1 end cell row cell bold F subscript bold 2 end cell row cell bold F subscript bold 3 end cell end table close square brackets bold S bold o bold space bold s bold a bold v bold i bold n bold g bold s bold space bold o bold f bold space bold t bold h bold e bold space bold f bold a bold m bold i bold l bold i bold e bold s bold space bold a bold r bold e bold space bold 880 bold comma bold space bold 970 bold space bold a bold n bold d bold space bold 500 bold space bold r bold e bold s bold p bold e bold c bold t bold i bold v bold e bold l bold y bold. end style
Answered by satyajit samal | 14 Mar, 2016, 11:43: AM

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