Question

(ii) 21 + 22 +23 + ... + 50
Z

Answer 1

Answer:

24+25+26+27+28+29+30+31+32+33+34+35+36+37+38+39+40+41+42+43+44+45+46+47+48+49.

Step-by-step explanation:

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Answer 2

Answer:

923

Step-by-step explanation:

the ns is 923 by the method of Sn =n/2*first no. + last no.