Solving word problems based on real life situation by reducing Equations to Linear Equation
00:02 (viii)Solve equations by reducing them into pair of linear equations
Solve word problems based on real life situation algebraically
04:52 Q2. Formulate the following problems as a pair of equations, and hence find their solutions:
(i) Ritu can row downstream 20 km in 2 hours, and upstream 4 km in 2 hours. Find her speed of rowing in still water and the speed of the current.
(ii) 2 women and 5 men can together finish an embroidery work in 4 days, while 3 women and 6 men can finish it in 3 days. Find the time taken by 1 woman alone to finish the work, and also that taken by 1 man alone.
09:23 Solvig Word Problems by reducing them into system of linear equations
(iii) Roohi travels 300 km to her home partly by train and partly by bus. She takes 4 hours if she travels 60 km by train and the remaining by bus. If she travels 100 km by train and the remaining by bus, she takes 10 minutes longer. Find the speed of
. To solve the pair of equations reducible to linear form.
Description: In this task, students will reduce the given pair of equations in linear form. For doing the first they will select common factor from the bubbles given Ii the questions. They will f sa’ther solve the pr of linear equations by any of the algebraic methods discussed earlier.
Execution: Teacher wit eirplain 2 to 3 questions on board to reduce the given equations in linear Form. Students will do the rest of the questions by themselves on their worksheets. Teacher w conduct a discussion session after the completion of worksheets by the students.
Parameters for Assessment
. convert given equations bi linear form.
. solve the paW or linear equations by algebra k methods.
. find the solution of given equations by making use of the above values.
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