Question

37.15+37.45+74.20

 

3+7+11+15+19+23+27+31+35

 

x+(x+1)+(x+2)+(x+3)+...+(x+10)=2029099

Answer 1

37.15 + 37.45 + 74.20

= 37.15 + 37.45 + 37.2.20

= 37.15 + 37.45 + 37.40

= 37( 15 + 45 + 40 )

= 37.100 = 3700

3 + 7 + 11 + 15 + 19 + 23 + 27 + 31 + 35

= ( 3 + 27 ) + ( 7 + 23 ) + ( 11 + 19 ) + ( 15 + 35 ) + 31

= 30 + 30 + 30 + 50 + 31 = 171

x + ( x + 1 ) + ( x + 2 ) + ( x + 3 ) + ... + ( x + 10 ) = 2029099

( x + x + x +... + x ) + ( 1 + 2 + 3 + ... + 10 ) = 2029099

11x +  55 = 2029099

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