**Directions (Q. 1 - 5): In each of the following questions, a series of numbers which contains a wrong number is given. Find out the wrong number in each case.**

**1. 1, 6, 13, 24, 33, 46, 61**

1) 6

2) 13

3) 24

4) 33

5) 46

**2. 8, 8, 9, 9, 11, 10, 13, 11, 18**

1) 8

2) 9

3) 10

4) 11

5) 13

**3. 3, 5, 13, 43, 175, 891, 5353**

1) 43

2) 175

3) 891

4) 5353

5) None of these

**4. 5, 10, 10, 10, 15, 10, 40, 10, 80**

1) 5

2) 10

3) 15

4) 40

5) 80

**5. 6, 9, 15, 19, 29, 47, 81**

1) 9

2) 15

3) 19

4) 29

5) 47

**6. An article was sold for certain price and there was a gain of 50%. If it would have been sold for Rs. 80 Less, there would be neither gain nor loss. Find the C.P.?**

1) Rs. 100

2) Rs. 130

3) Rs. 160

4) Rs. 150

5) Can't be determined

**7. A man is walking around a rectangular park at a speed of 7 km/h. and completes one round in 20 minute. What is the perimeter of the park?**

1) 110 km.

2) 140 m.

3) 2.33 km.

4) 1.35 km.

5) 110 m.

**8. In how may ways 'RECEPTION' can be written so that vowel and consonant come alternately?**

1) 120

2) 60

3) 420

4) 1400

5) 2880

**9. The perimeter of the square is same that of a rectangle. If side of square is 14 m, what is the length of rectangle?**

1) 14 m.

2) 28 m.

3) 7 m.

4) 14 cm.

5) Can 't be determined

**10. The radius of a circular garden is 13 m. there is a path 2 m. wide outside it. Find the area of the path outside-**

1) 707 m^2

2) 531 m^2

3) 100 m^2

4) 176 m^2

5) 150 m^2

Answers:

1. 3

1 + 5 = 6, 6 + 7 = 13, 13 + 9 = 22, ...

2. 5

There are two series,

S1 = 8 + 1 = 9, 9 + 2 = 11, 11 + 3 = 14, ...

S2 = 8 + 1 = 9, 9 + 1 = 10, 10 + 1 = 11, ...

3. 2

The series is:

3 × 1 + 2 = 5

5 × 2 + 3 = 13

13 × 3 + 4 = 43

43 × 4 + 5 = 177

177 × 5 + 6 = 891

891 × 6 + 7 = 5353

4. 3

There are two series:

S1 = 5 × 2 = 10, 10 × 2 = 20, 20 × 2 = 40 ...

S2 = 10 + 0 = 10, 10 + 0 = 10, 10 + 0 ...

5. 2

6 × 2 - 3 = 9, 9 × 2 - 5 = 13,

13 × 2 - 7 = 19, ...

6. 3

Let CP = x

SP = y

So, (y - x)/x * 100 = 50

y = 3x/2

3x/2 - 80 = x

x = 160

7. 3; Distance travelled = Perimeter

8. 5; 5 consonant + 4 vowel 5! × 4!

9. 5;

10. 4;

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