untitled

0DWK,;;)RUPD

=

25

3 148877

(^12525)
53 53 53
3
15 u
u u u
= 1786524
25
446631
˜
? compound principal is Tk. 17865 ˜ 24
? compound profit = Tk. ( 17865 ˜ 24  15000 )
= Tk. 2865 ˜ 24
Activity :

1. The loss is n% when 10 lemons are sold per taka. How many lemons are to be
   sold per taka to make the profit of z%?


2. What will be the profit principal of Tk. 750 in 4 years at the rate of simple
   profit
   2

1

6 percent per annum?

3. Find the compound principal of Tk. 2000 in 3 years at the rate of compound
   profit of Tk. 4 percent per annum.

Exercise 3⋅ 5

1. Which one of the following is the factorized form of x^2  7 x 6?
   (a) (x 2 )(x 3 ) (b) (x 1 )(x 8 )
   (c) (x 1 )(x 6 ) (d) (x 1 )(x 6 )


2. If f(x) x^2  4 x 4 , which one of the following is the value of f( 2 )?
   (a) 4 (b) 2
   (c) 1 (d) 0


3. If xy xy, which one of the following is the value of y?
   (a)  1 (b) 0
   (c) 1 (d) 2


4. Which one of the following is the lowest form of 2

2 3

3

3

x x

x x





?

(a) x^2 (b) x

(c) 1 (d) 0

5. Which one of the following is the lowest form of
   x

x





1

1 2

?

(a) 1 (b) x