In the following number series only one number is wrong. Find out the wrong number.
18.3, 20.6, 16, 22.9, 13.7, 2.2, 11.4
2, 4, 11, 37, 151, 771, 4633
188, 154, 140, 132, 128, 126, 125
6, 4, 5, 11, 39, 179, 1127
9, 5, 6, 10.5, 23, 61, 183
For the following questions answer them individually
A, B and C started a business with investments of 1,600/-, 2,100/- and 1,500/- respectively. After 8 months from the start of the business, B and C invested additional amounts in the ratio of 3 : 5 respectively. If the respective ratio between total annual profit and C’s share in the annual profit was 3 : 1, what was the additional amount invested by B after 8 months ?
A shopkeeper purchased 15 kg of variety A rice at X per kg and 10 kg of variety B rice at ‘X+ 5’ per kg. The shopkeeper sold the whole quantity of variety A rice at 10% profit and that of variety B rice at 20% profit. The total selling price of variety A rice was 30/- more than that of variety B rice. Had the two varieties been mixed and sold at an overall profit of 20%, what would have been the selling price of the mixture per kg?
In the given questions, two quantities are given, one as Quantity I and another as Quantity II. You have to determine relationship between two quantities and choose the appropriate option.
a: If quantity I ≥ quantity II
b: If quantity I > quantity II
c: If quantity I < quantity II
d: If quantity I = quantity II or the relationship cannot be established from the information that is given
e: If quantity quantity II
1 >a>0 > b
Quantity:
1. value of $$\frac{(a+b)^{2}-a^{2}-b^{2}}{(a+b)^{2}-(a^{2}-b^{2})}$$ = $$\frac{1}{2(ab^{3}+ab)}$$
There are three positive numbers- a, b and c. The average of a and b is less than the average of b and c by 1.
Quantity :
I. Value of c.
II. Value of a
Three equal circles are drawn on a triangle ABC, with points A, B and C as the centres. Radius of each of the
circle is equal to half of the side of the triangle ABC. (Figure not to the scale)

Area of shaded region 1 = $$128\frac{1}{3}cm^{2}$$
Quantity :
I. The area of the shaded region 2 ( in cm^{2} )
II. 30 cm^{2}