if in an A.P 1 + 6 + 11 +...........+x=189 find the value of x?
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a+(n-1)d=189
1+(x-1)5=189
5x-5 =189-1
5x-5=188
5x=188+5
5x=193
x=193
x=38.6 is answer
1+(x-1)5=189
5x-5 =189-1
5x-5=188
5x=188+5
5x=193
x=193
x=38.6 is answer
graj30202:
sum karne wala formula apply hoga
what I couldn't get u
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