Algebraic Expressions

Algebra Worksheet-13

1. The solution of 0.5x – (0.8 – 0.2x) = 0.2 – 0.3x is

(a) x = 1              (b) x = –1           (c) x = 2             (d) Both (a) and (b)

2. The length of a rectangle is three times its width. If the perimeter of the rectangle is 96 metres, then the area of the rectangle is

(a) 144 m²         (b) 430 m²        (c) 432 m²         (d) 440 m²

Algebra Worksheet-14

1. There are some lotus flowers in a pond and some bees are hovering around. If one bee lands on each flower, one bee will be left. if two bees land on each flower, one flower will be left. Then the number of flowers and bees respectively are

(a) 3, 4               (b) 4, 3               (c) 2, 3                (d) 3, 2

2. The ages of A and B are in the ratio 5 : 3. After 6 years, their ages will be in the ratio 7 : 5. The sum of their present ages is

(a) 9 years         (b) 10 years       (c) 15 years        (d) 24 years

Algebra Worksheet-15

1. The statement "Thrice a number x decreased by 5 is equal to 27" is expressed in equation

(a) 5 – 3x = 27                              (b) 3x – 5 = 27

(c) –5 = 27                                     (d) 3x – 27 + 5 = 0

2. A number exceeds by 40 when added by 20% of itself. The number is

(a) 800               (b) 100               (c) 200               (d) 320