[Download PDF] 2012 RRB Ahmedabad Paper with Solutions

Instructions

For the following questions answer them individually

Question 1

Identify the wrong number in the following series--
216, 163, 120, 72, 24

Video Solution

Solution

The series from the right is 24 x 1, 24 x 3, 24 x 5, 24 x 7 and 24 x 9.

For example,
24 x 1 = 24
24 x 3 = 72
24 x 5 = 120
24 x 7 = 168
24 x 9 = 216

So, the wrong number is 163. The correct number is 24 x 7 = 168

Question 2

What should come in place of '?'
$$6 \times 4 \times 3 = 436,$$
$$8 \times 4 \times ? = 468,$$
$$6 \times 9 \times 8 = 986,$$

Video Solution

Solution

The equation uses the middle number in the hundred's place, the rightmost number in the tenth's place and the left most letter in the unit's place. So, the number to be used in the place of the question mark is 6.

Question 3

Choose the group of mathematical signs from the given options that may replace the sign ‘ ’ in the following equation--
7 7 * 2 * 1 = 12

Video Solution

Solution

12 can be written as 7 + 7 - 2 x 1.

So, the answer is + - x which is option (b).

In all other options, the equation doesn't match.

Question 4

In a code language, ‘KINDLE’ is written as ‘ELDNIK’. How can EXOTIC be written in the same language ?

Video Solution

Solution

The code uses the same letters as the original word but in an inverted fashion. So, EXOTIC is coded as CITOXE.

Question 5

CEGI: RTVX: IKMO: ?

Video Solution

Solution

The code uses the letters in the alphabetical series in an inverted fashion. For example: A is used in the place of Z, B in the place of Y, etc. Also they are inverted. So, The last letter comes first in the code. So, I is replaced with R, K with P, M with N and O with L. The code is LNPR.

Instructions

A sequence is given in which one term (or more terms) is missing. From the given options, choose the correct one that can complete the sequence--

Question 6

AEI, BFJ, CGK, ?

Video Solution

Solution

The letters strictly follow the alphabetical series. So, next set of letters will be DHL

Question 7

1, 6, 15, ?, 45, 66, 91

Video Solution

Solution

The series is a follows

1 x 1

2 x 3

3 x 5

4 x 7

5 x 9

6 x 11

7 x 13, etc

The numbers on the left increase by 1 and the numbers on the right increase by 2

Instructions

Choose that odd one which is different from the rest three---

Question 8

Odd one out

Video Solution

Solution

Diamond is the hardest of the four but is not a metal. The other three are metals.

Question 9

9

Video Solution

Solution

The customer is the end user of the products. All others are in the business of selling the product.

Question 10

10

Video Solution

Solution

Engineering is a professional degree obtained by years of education and training.

CAT Content

2012 RRB Ahmedabad

2012 RRB Ahmedabad

Identify the wrong number in the following series-- 216, 163, 120, 72, 24

What should come in place of '?' $$6 \times 4 \times 3 = 436,$$ $$8 \times 4 \times ? = 468,$$ $$6 \times 9 \times 8 = 986,$$

Choose the group of mathematical signs from the given options that may replace the sign ‘ *’ in the following equation-- 7 * 7 * 2 * 1 = 12

In a code language, ‘KINDLE’ is written as ‘ELDNIK’. How can EXOTIC be written in the same language ?

CEGI: RTVX: IKMO: ?

AEI, BFJ, CGK, ?

1, 6, 15, ?, 45, 66, 91

Odd one out

9

10

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Identify the wrong number in the following series--
216, 163, 120, 72, 24

What should come in place of '?'
$$6 \times 4 \times 3 = 436,$$
$$8 \times 4 \times ? = 468,$$
$$6 \times 9 \times 8 = 986,$$

Choose the group of mathematical signs from the given options that may replace the sign ‘ ’ in the following equation--
7 7 * 2 * 1 = 12