Question

Q7) a and b vary directly. If A1 = 24, bı=21 and A2 = 8, then what is b2 equal to?​

Answer 1

Step-by-step explanation:

when no. varies directly

x/y = k constant

A1/A2=B1/B2

24/8=21/x

by crossmultiplication

24×x = 8×21

x= 8×21/24

x=7

Therefore, B1= 7ans