Atul wants to burn 250 calories in a day by doing physical activity. He chooses walking and running stairs for the same and plans to spend ‘t’ hours in walking and ‘s ‘ hours in running stairs. Write a linear equation for the same and draw the graph

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Correct question:Atul wants to burn 250 kilocalories in a day by doing physical activity. He chooses walking and running stairs for the same and plans to spend t minutes in walking and s  mins in running stairs. Write a linear equation for the same and draw the graph,NowAtul wants to burn 250 kcalWalking burns 4 kcal per min and running stairs burn 10 kcal per minHence required equation is:4t+10s=250Divide each term by 22t+5s=125In graph t is on X-axis and  s in on Y-axis


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  • 4
4t+10s=250&graph
  • 1
the question should be 250 kilocalories, t min. and s min.
CBSE HAS GIVEN WRONG QUESTION ACCORDING TO DATA
  • 2
WALKING = 4t kilocalories
RUNNING = 10s kilocalorie

​4t+10s= 250
2(2t+5s)=250
2t+5s=125
s=(125-2t)/5
 
  • 0
10t+21s=250
  • -3
960t+2400s=1
 
  • 2
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