दो क्रमिक छूटों के बाद, काजल ने 2142 रुपये में एक जीन्स खरीदी, जिसका अंकित मूल्य 3400 रुपये है। यदि दूसरी छूट 10% है, तो पहली छूट का प्रतिशत ज्ञात कीजिए।

A company considers hiring an extra machine for $150 per day to produce additional units. If the additional throughput contribution generated from producing these units on the machine is $390, by how much will total profit increase?

If the cost price of an article is 85 times its selling price, what is the loss percentage?