Question

a shopkeeper earns a profit of Rupees 1 by selling one pen and incurs a loss of 40 paise per pencil while selling pencils of her old stock. In a particular month she earns neither profit nor loss.If she sold 70 pens how many pencils did she sells. Please answer the question ,with step by step explaination.I will give 45 points to you​

Answer 1

Answer:

please mark me brainliest

Answer 2

Hormones are chemical substances that act like messenger molecules in the body. After being made in one part of the body, they travel to other parts of the body where they help control how cells and organs do their work. For example, insulin is a hormone that's made by the beta cells in the pancreas.