Three years from now, Tully will be twice as old as Kate. How old was Tully a year ago if Kate is now 29 years old?
Се сол пас, Талли ду баробар калонтар аз Кейт хоҳад буд. Агар Кейт ҳоло 29 сола бошад, Талли як сол пеш чандсола буд?
How old will Kate be in three years? ** Three years from now, Kate will be 29 years + 3 years = <<29+3=32>>32 years old.
How old will Tully be in three years? ** So by that time, Tully will be 32 years x 2 = <<32*2=64>>64 years old.
How old is Tully now? ** This means, Tully is 64 years - 3 years = <<64-3=61>>61 years old now.
How old was Tully last year? ** Therefore, Tully was 61 years - 1 year = 60 years old last year.
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How old will Kate be in three years? ** Three years from now, Kate will be 29 years + 3 years = <<29+3=32>>32 years old.  
How old will Tully be in three years? ** So by that time, Tully will be 32 years x 2 = <<32*2=64>>64 years old.  
How old is Tully now? ** This means, Tully is 64 years - 3 years = <<64-3=61>>61 years old now.  
How old was Tully last year? ** Therefore, Tully was 61 years - 1 year = 60 years old last year.  
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