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m ഇനങ്ങളുടെ ആകെ തുകയുടെ 20% അതിന്റെ ശരാശരി ആണെങ്കിൽ , m ന്ടെ മൂല്യം എന്താണ്?

A20

B10

C5

D4

Answer:

C. 5

Read Explanation:

m ഇനങ്ങളുടെ ആകെ തുക = (S) എന്ന് കരുതാം.

അപ്പോൾ ശരാശരി = (\frac{S}{m})

ചോദ്യപ്രകാരം:
20% of S=Sm20\% \text{ of } S = \frac{S}{m}

0.2S=Sm0.2S = \frac{S}{m}

(S≠0)(S \neq 0) ആണെന്ന് കരുതി ഇരുവശവും (S) കൊണ്ട് ഭാഗിച്ചാൽ:

0.2=1m0.2 = \frac{1}{m}

m=10.2=5m = \frac{1}{0.2} = 5

ഉത്തരം: (m = 5)


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