Question

a varies directly with b. The value of a is 20 when b = 2.5. Find the value of a when b = 4

chapter name : unitary method and its applications​

Answer 1

Answer:

32

Step-by-step explanation:

$4 \times \frac{20}{2.5} \\ 4 \times 8 \\ 32$

hope it helped you please mark me as brainlist