Math, asked by manjeetredu357, 5 months ago

(555
(a)45
(b) 50
Average of 7 numbers is 9. If 3 new number is added then the average of 10
numbers is 10. Find the average of 3 new numbers.
7 संख्याओं का औसत 9 है। यदि उ नई संख्याएँ जोड, दी जाए तो इन 10 संख्याओं का
औसत 10 हो जाता है। नई संख्याओं का औसत ज्ञात कीजिए।
(a) In
(b) 12
(d) 14
(c) 13
3
vne
ditura​

Answers

Answered by dryash1009
0

Answer:

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Step-by-step explanation:

Sol. Let my age = M

Father’s age = F = M + 30

Sister’s age = S

Mother’s age = S + 25

(S+S+25+M+M+30)/4=26.25,S+M=25 ….(i)

(S+29+M+4+M+34)/3=107/3

S + 2M = 40 ….(ii)

From (i) and (ii)

M = 15, F = 45

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