Question

If a and b are inversely proportional , a=9 when b=8, find b' when a=12​

Answer 1

Step-by-step explanation:

a=9 b=8

a=12 b=11........

Answer 2

$\huge\mathtt{{\colorbox{silver}{★SOLUTION★}}}$

$\huge \: a \: \alpha \: \frac{1}{b}$

THEREFORE,

$\huge \: a1b1 = a2b2$

PUTTING THE GIVEN VALUES,

$\huge 9 \times 8 = 12 \times b \\ \huge \: = b = 6$

$\huge\mathtt{{\colorbox{silver}{ANSWER = 6}}}$