Question

on a particular day at hill station , the temperature at noon is 15degree celcius. what is the fa in the temperature at midnight?​

Answer 1

Answer:

Let the temperature of the hill station from Monday to Friday which form are A.P. is

a−2d,a−d,a,a+d,a+2d

As per the first condition

a−2d+a−d+a=0

∴3a−3d=0

⇒3(a−d)=0

⇒(a−d)=0

∴a=d

As per the second condition

a+d+a+2d=15

∴2a+3d=15

⇒2a+3a=15(∵a=d)

⇒5a=15

⇒a=3

⇒d=3 (a=d)

∴a−2d=3−2(3)=3−6=−3

∴a−d=3−3=0

∴a+d=3+3=6

∴a+2d=3+2(3)=9

∴Temperature from Monday to Friday is −3

∘

C,0

∘

C,3

∘

C,6

∘

C,9

∘

C

Answer 2

Answer:

Let the temperature of the hill station from Monday to Friday which form are A.P. is

a−2d,a−d,a,a+d,a+2d

As per the first condition

a−2d+a−d+a=0

∴3a−3d=0

⇒3(a−d)=0

⇒(a−d)=0

∴a=d

As per the second condition

a+d+a+2d=15

∴2a+3d=15

⇒2a+3a=15(∵a=d)

⇒5a=15

⇒a=3

⇒d=3 (a=d)

∴a−2d=3−2(3)=3−6=−3

∴a−d=3−3=0

∴a+d=3+3=6

∴a+2d=3+2(3)=9

∴Temperature from Monday to Friday is −3

Step-by-step explanation: