The first one A) :)))))))
Step-by-step explanation:

Answer: Rs 25,000
Step-by-step explanation:
Given
Retailer sold an electric iron to a customer at a loss of 10%
Suppose the Cost price of iron is 
So, selling price is 
This price must be equal to
+ VAT

Thus, the cost price is 
Answer: (x + 1) ( x + 4)
Step-by-step explanation: