A wholesaler sells a watch to a retailer at a gain of 32% and the retailer sells it to a customer at a loss of 20%. If the customer pays 1,953.6, what had it cost the wholesaler ?

Let the cost for wholesale dealer be Rs. x.

According to the question,

$x imes frac{132}{100} imes frac{80}{100}=1953.6$

$Rightarrow x=1953.6 imes frac{100}{132} imes frac{100}{80}=$ Rs. 1850