Question

19. Observe the following and answer:
Quantity A
105
45
P
Quantity B
28
12
32
If A and B are in direct proportion, find the value of P.​

Answer 1

Answer:

When two quantities x and yare in direct proportion (or vary directly), they are written as x ∝ y. Symbol “∝” stands for 'is proportional to'. When two quantities x and y are in inverse proportion (or vary inversely) they are written as x ∝ 1 y .