MTH302 Current Midterm Paper Dec Fall 2013 File 6

4.A marker that was bought for Rs. 60 was marked up 15% of the sale price. What is original sale price?

5.Single discount rate equivalent to a series of discounts 20% and 25% is:

6.If the original cost is $4.00 and the markup is 25%, the sales price is

7.If A and B are two square matrices. Then, at what condition they are the inverses of each other?
ans:If their products, in both orders, is an identity matrix.
8.A product costing Rs. 500 is sold at 30% profit. Find its selling price?
9.If 42 : 6 = x : 5, what is the value of x?

10.Total marks of Saleem in two subjects are 160. If the ratio of marks in the two subjects is 3 : 5, what will be the marks in two subjects?
 Solution of Questions:

4)

selling price= cost price X( 1+ Markup)

60  = c.p x1.60

60/1.60   = c.p

37.5 =c.p

5)

selling price 100

(1-L1)X (1-L2)

(1-.20)x(1-.25)

.60

100*.60=60

100-60=40

40% single discount rate

6)

selling price = cost x (1+ % markup)

                   = 4x(1.25)

                    = 5

8)

500*1.30=650

9)

42*5=6*X

210=6X

210/6=x

35

total marks 160

3+5=8

160/8=20

20*3=60

20*5=100