Arman is six times older than his sister. His sister is 2 years old four years ago. In how many years will Arman's age be 40?
Арман шаш маротиба калонтар аз хоҳараш аст. Вай хоҳараш чор сол пеш 2 сола буд. Дар чанд сол синни Арман 40 мешавад?
How old is Arman's sister now? ** Arman's sister is 4 + 2 = <<4+2=6>>6 years old now.
How old is Arman? ** So, Arman is 6 x 6 = <<6*6=36>>36 years old.
How many years will Arman be 40? ** Hence, Arman will be 40 in 40 - 36 = <<40-36=4>>4 years.
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How old is Arman's sister now? ** Хоҳари Арман ҳоло 4 + 2 = <<4+2=6>>6 сола аст.  
How old is Arman? ** Пас, Арман 6 x 6 = <<6*6=36>>36 сола аст.  
How many years will Arman be 40? ** Аз ин рӯ, Арман дар 40 - 36 = <<40-36=4>>4 сол 40-сола мешавад.  
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