मराठी

If the mean of 6, 4, 7, ‘a’ and 10 is 8. Find the value of ‘a’

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प्रश्न

If the mean of 6, 4, 7, ‘a’ and 10 is 8. Find the value of ‘a’ 

बेरीज
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उत्तर

No. of terms = 5 

Mean = 8 

Sum of numbers = 8 × 5 = 40   ...(i) 

But, sum of number = 6 + 4 + 7 + a + 10 = 27 + a  ...(ii) 

From (i) and (ii) 

27 + a = 40 

a = 13

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पाठ 24: Measure of Central Tendency (Mean, Median, Quartiles and Mode) - Exercise 24 (A) [पृष्ठ ३५६]

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सेलिना Concise Mathematics [English] Class 10 ICSE
पाठ 24 Measure of Central Tendency (Mean, Median, Quartiles and Mode)
Exercise 24 (A) | Q 5. | पृष्ठ ३५६
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