Question

1.
How many litres of pure acid is there in 8 litres of a 20% solution ?
(a) 1.4
(b) 1.5
(c) 1.6
(d) 2.4
2.
Half of 1 percent written as a decimal is
(a) 0.005
6) 0.05
C) 0.02
(d) 0.2
3.
10% loss on selling price is what percent loss on the cost price.
(a) 97% (6) 97% () 10%
11
(d) 11%
4.
The area of the following figure is
2y + 4 cm
2 cm
y + 2 cm
3 cm
(b) 6y + 10 cm?
(c) 9y +18 cm
(a) 7y + 8 cm
d) 7y + 14 cm?
5.
Each exterior angle of a regular pentagon is
(a) 72°
(b) 100°
(C) 80°
(d) 60°
6.
Area of APQC is
в
—
(c) 36 cm
(d) 40 cm?
(a) 24 cm?
(b) 30 cm?​

Answer 1

Answer:

c) 1.6

pure acid = 8 liters .

and 20 % will be

20/ 100× 8

= 1.6

means answer c) is correct .