A shopkeeper earns a profit of Rs.1 by selling one pen and incurs a loss of 40 pasie per pencil while selling pencils of her old stock.
In the next month she earns neither profit nor loss. If she sold 70 pens, how many pencils did she sell?

A shopkeeper earns a profit of Rs.1 by selling one pen and incurs a loss of 40 pasie per pencil while selling pencils of her old stock. In a particular month she incurs a loss of Rs.5. In this period, she sold 45 pens. How many pencils did she sell in this period?

A cement company earns a profit of Rs.8 per bag of white cement sold and a loss of Rs.5 per bag of grey cement sold. What is the number of white cement bags it mus sell to have neither profit nor loss, if the number of grey bags sold is 6,400 bags.

Meenu bought two fans for Rs 1200 each. She sold one at a loss of 5% and the other at a profit of 10%. Find the selling price of each. Also find out the total profit or loss.

Lata spent Rs.9.50 for buying a pen and Rs.2.50 for one pencil.How much money did she spend?

A cement company earns a profit of Rs.8 per bag of white cement sold and a loss of Rs.5 per bag of grey cement sold. The company sells 3,000 bags of white cement and 5,000 bags of grey cement in a month. What is tis profit or loss?

A furniture firm manufactures chairs and tables, each requiring the use of three machines A, B and C. Production of one chair requires 2 hours on machine A, 1 hour on machine B and 1 hour on machine C. Each table requires 1 hour each on machine A and B and 3 hours on machine C. The profit obtained by selling on chair is ₹ 30 while by selling one table the profit is ₹ 60. The total time available per week on machine A is 70 hours, on machine B is 40 hours and on machine C is 90 hours. How many chairs and tables should be made per week so as to maximize profit ? Formulate the problem as L.P.P. and sovle it graphically.