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After replacing an old member by a new m...

After replacing an old member by a new member, it was found that the average age of five members of a club is the same as it was 3 years ago. The difference between the ages of the replaced and the new members is:

A

2 years

B

4 years

C

8 years

D

15 years

Text Solution

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The correct Answer is:
D
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After replacing an old member by a new member, it was found that the average age of five member of a club is the same as it was 3 years ago. The difference between the ages of the replaced and the new member is - पुराने सदस्य के स्थान पर नये सदस्य के आने के बाद देखा गया कि क्लब के पाँच सदस्यों की औसत आयु उतनी ही रही जितनी 3 वर्ष पहले थी। हटाए गए सदस्य और नए सदस्य के बीच आयु का अंतर ज्ञात कीजिए?

After replacing an old member by a new member,it was found that the average age of five members of a club is the same as it was 3 years ago.What is the difference between the ages of the replaced and the new member? (a) 2 years (b) 4 years (c)8 years (d)15 years

The average age of 7 members of Patel's family is 25 years. The average age of the same family 3 years ago was :

In a club, the average age of the members is 30 years, the average age of the male members is 34 years and that of the female members is 26 years. The percentage of the male members is

The age of five members of a family are 42, 49, 56, 63 and 35 years.Find their average age

10 years ago, the average age of a family of five members was 38 years. Now, two new members join, whose age difference is 8 years. If the present average age of the family is the same as it was 10 years ago, what is the age (in years) of the new younger member? 10 वर्ष पहले, पांच सदस्यों के एक परिवार की औसत उम्र 38 वर्ष थी | अब दो नए सदस्य शामिल हो गए हैं, जिनकी उम्र में 8 वर्ष का अंतर है | यदि परिवार की वर्तमान औसत उम्र उतनी ही है जितनी यह 10 साल पहले थी, तो नए छोटे सदस्य की उम्र ज्ञात करें |

KIRAN PUBLICATION-AVERAGE-TYPE-VIII
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