Question

The average of some quantities is 42.five more quantites of average 50 are added, then the overall becomes 43. Find the original number of quantities?

Answer 1

Step-by-step explanation:

Let the original number of quantities be x,

Therefore,

$42 \times x + 5 \times 50 = 43(x + 5) \\ 42x + 250 = 43x + 215 \\ 250 - 215 = 43x - 42x \\ 35 = x \\ x = 35 \\ thus \: original \: number \: of \: \\ quantities \: are \: 35.$

Answer 2

Answer:

Average = _______?_________    

       numbers of quantites

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Step-by-step explanation: