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allochka39001 [22]
2 years ago
14

If average of 3 quantities is 15 , sum of quantities is....?

Mathematics
1 answer:
Verizon [17]2 years ago
8 0

Answer:

45

Step-by-step explanation:

Let the three quantities be x, y and z.

\because \: average =  \frac{sum \: of \: quantities}{no \: of \: quantities}  \\  \\  \therefore \: 15 =  \frac{x + y + z}{3}  \\  \\ 15 \times 3 = x + y + z \\  \\ \huge \purple{ 45 = x + y + z}

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