Q. 84.3( 215 Votes )

# In countries like

Answer :

**(i)** Given:

When C = 0 then F = 32,

And

When C = -10 then

F = 9(-2) + 32

= - 18 + 32

= 14

**(ii)** Putting the value of C = 30 in F = () C + 32, we get

F = × 30 + 32

F = 54 + 32

F = 86

**(iii)** Putting the value of F = 95 in F = ()C + 32, we get

95 = ()C + 32

()C = 95 - 32

C = 63 ×

C = 35

**(iv)** After putting the value of F = 0 in

F = () C + 32,

We get:

0 = () C + 32

() = -32

C = -32 × 5/9

C =

Putting the value of C = 0 in

F = () C + 32,

We get:

F = () × 0 + 32

F = 32

**(v)** We have to find when F = C

Hence,

After putting F = C in

F = ()C + 32,

We get:

F = ()F + 32

F – ×F = 32

F = 32

F = – 40

Therefore at value -40,

Fahrenheit and Celsius both are numerically the same.

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