प्र. 5 11 ते 50 पर्यंतच्या सर्व नैसर्गिक संख्यांची बेरीज किती
(1) 1220
(2) 1525
(3) 127
Answers
Answered by
0
Answer:
A
Step-by-step explanation:
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Answered by
3
Answer:
1220
Step-by-step explanation:
n×(n+1)²======50×(50+1)²=====50×51=2550::::::::2550÷2=1275;;,,, N:1275-55=1220
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