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10 years ago, the average age of a famil...

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 |

A

15

B

9

C

10

D

17

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