2 .A circle is touching the side AC of Δ ABC at P and is also touching AB and AC produced at Q and R respectively. If AQ = 8 cm then perimeter of Δ ABC is –
4 .A shopkeeper sells an article at a loss of 14 $1\over 2$% . Had he sold the article for ` 83.25 more he would have earned a profit of 8%. The cost price of the article is –
6 .In a hostel, there are 120 students and food stock is for 45 days. If 30 new students join the hostel, i n how many days wi l l the complete stock be exhausted ?
7 .40 men can build a wall 200 m long in 12 days working 8 hrs a day. The number of days 30 men will take to build a similar wall 300 m l ong worki ng 6 hrs a day wil l be –
8 .A book was sold at a discount of 10% on the pri nted pri ce and was purchas ed at a discount of 20% on the printed price. If the profit in the complete deal was ` 10, then the printed price of the book was –
9 .A can do a piece of work in 24 days, while B alone can do it in 16 days. With the help of C, they finish the work in 8 days. C alone can do the work in –