1.

A varies directly as B and inversely as C. A is 12 when B is 6 and C is 2. What is the value of A when B is 12 and C is 3?

Answer»

Solution :`AproptoB` and `Apropto 1/C`
It MEANS ,`AproptoB/c IMPLIES A=(KB)/C`
Here A varies directly as B but INVERSELY as C.
Also it can vary as only directly or inversely as more than one quantities.
`AproptoBC implies A=KBC`
and `Apropto1/(BC)implies A=K/(BC)`


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