4 friends went to buy from a clothes shop. Every item was 50% off.  All four friends decided to buy a t-shirt. The original price of the t-shirt was 20 dollars. How much money did they spend in total?
4 дӯст ба дӯкони либос рафтанд. Ҳар як чиз 50% тахфиф дошт. Чаҳор дӯст қарор доданд, ки як тишерт харанд. Нархи аслии тишерт 20 доллар буд. Онҳо дар маҷмӯъ чанд пул сарф карданд?
How much did the t-shirt cost after the 50% discount? ** After the 50% discount, the t-shirt cost 20 * 0.5 = $<<20*0.5=10>>10.
How much money did they spend in total? ** So in all, the 4 friends spent 4 * $10 = $<<4*10=40>>40.
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How much did the t-shirt cost after the 50% discount? ** Пас аз тахфифи 50%, тишерт 20 * 0.5 = $<<20*0.5=10>>10 арзиш дошт.  
How much money did they spend in total? ** Ҳамин тавр, дар маҷмӯъ, 4 дӯст 4 * $10 = $<<4*10=40>>40 сарф карданд.  
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