31. Find the average of cubes of first 49 positive integers.
पहले 49 धनात्मक पूर्णांक के घन का औसत ज्ञात कीजिए
ਪਹਿਲੇ 49 ਧਨਾਤਮਕ ਪੂਰਕ ਸੰਖਿਆਵਾਂ ਦੇ ਘਣਾਂ ਦਾ ਔਸਤ ਗਿਆਤ ਕਰੋ।
(a) 30625 (b) 1225
(c) 30125 (d) 6235
answer: a
(31)
5/5 - (1 vote)
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