Sum of first hundred numbers common to the two A.P's 12,15,18..and17,21,2 is
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Answered by
1
Answer:
60450
Step-by-step explanation:
1)12,15,18,21,24........
2)17,21,25.........
a=21
d=12
n=100
S100=n/2[a+(n-1)d]
=100/50[21+(100-1)×12]
=50[21+99×12]
=50[21+1188]
=50×1209=60450
hope it help
Answered by
0
Answer:
I don't know soory
please excuse me
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