Sum of the 4 childern born at intervel of 4 year is in 36. What is the age of youngest child
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15 years
x+x+4+x+8+x+12=36
4x+24=36
x=36-24/4
( x=3 )
3+4=7
3+8=11
3+12=15
x+x+4+x+8+x+12=36
4x+24=36
x=36-24/4
( x=3 )
3+4=7
3+8=11
3+12=15
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