Math, asked by saurabh125, 1 year ago

in winter, the temperature at a hill station from monday to friday is in A.P .the sum of the temperature of monday ,tuesday and wednesday is zero degree celsius and the sum of the temperature of thursday and friday is 15 degree celcius .find the temperature of each of the five days

Answers

Answered by mbgreat
63
let
a-2d monday -1
a-d tuesday -2
a wednesday -3
a+d thursday -4
a+2d friday -5
adding eqn -1 -2 -3 -4 & -5
we get
a-2d+a-d+a+a+d+a+2d=0+15 °c
5a=15
a=3
from eqn 1 2 &3
a-2d+a-d+a=0
3a-3d=0
a=d
a=d=3
monday -3°c
tuesday 0° c
wednesday 3° c
thursday 6°c
friday 9°c

saurabh125: thank u
Answered by SayaLiChandekar
22

Answer:

Step-by-step explanation:

Let the five days are,

a-2d , a-d , a , a+d , a+2d

Mon, Tue, wed, Thu , Fri

Acc to first condition,

a-2d + a-d + a = 0

3a - 3d = 0 --------( 1 )

Acc to second condition,

a+d + a+2d = 15

2a + 3d = 15 --------( 2 )

Adding ( 1 ) and ( 2 ),

3a - 3d = 0

+ 2a + 3d = 15

____________

5a = 15

a = 15/5

a = 3

Put a=3 in ( 1 )

3a - 3d = 0

3×3 - 3d =0

9 - 3d = 0

-3d =0-9

d = 9/3

d = 3

a-2d = 3-2×3= 3-6 = -3

a-d = 3-3= 0

a= 3

a+d = 3 +3 = 6

a+2d= 3+ 2×3 = 3+6 = 9

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