Question

5.
Kargil's temperature was recorded in a week from Monday to Saturday. All
readings were in A.P.The sum of temperatures of Monday and Saturday was
5° C more than sum of temperatures of Tuesday and Saturday. If temperature of
Wednesday was -30° celsius then find the temperature on the other five days.​

Answer 1

Answer:

Let the temperature of monday tuesday wednesday, thursday friday and saturday be a,a+d,a+2d,a+3d,a+4d,a+4d,a+5d

all readings were in A.P

By 1st condition

sum of temperature of monday, saturday=sum of temperature tuesday ,saturday+5

so,

a+a+5d = a+d+a+5d+5

2a+5d=2a+6d+5

-5=d ........(1)

Now,

by 2nd condition,

temperature of wednesday = -30

a+2d=-30

a+(2×(-5))= -30 .........(from 1st)

a-10= -30

a=-30+10

a= -20

Temperature is as follows :

Monday= a=20 degree

tuesday = a+d= -20+(-5)= -25

wednesday = a+2d = -20+(-10)= -30

thursday = a+3d= -20+(-15) = -35

friday = a+4d= -20+ (-20)= -40

saturday = a+ 5d=-20+(-25)= -45