Question

if A is directly propotional to B and A=1 , 2 upon 3 when B = 5 upon 6 find: the value of A when b = 1 upon 3

Answer 1

Answer:

∝b⇒a=k

1

b;k

1

is a constant

b∝

c

1

⇒b=

c

k

2

;k

2

is a constant

⇒a=

c

k

1

k

2

=

c

k

3

;k

3

=k

1

k

2

is another constant

⇒a∝

c

1