# Math Aptitude Test For Your Mathematical Skills...

Math is a vast subject. Hence each job requires a specific mathematical knowledge and offers a unique math aptitude test.

When you are applying for the situation of a computer programmer, you need not be very good at math. However, when you are going for a post of a civil engineer, you can’t afford bad scoring.

On the other hand, almost all of the employer organizations use math test for screening purposes in one way or the other. They may be different in subjects, but most of them include questions upon the following areas:

•    Algebra

•    Probability

•    Trigonometryv

•    Number series

•    Statistics

•    Permutations and Combinations

•    Profit and Loss

## Sample Questions

This is not a professionally built mathematical test but a simple effort to exemplify it. These sample questions will help you to know general style of math aptitude tests. Foe Example...

The L.C.M. (Lowest (or Least) Common Multiple) of two numbers is 45 times to their H.C.F (Highest Common Factor). If one of the numbers is 125 and sum of L.C.M. and H.C.F. is

1150, the other number is:

a) 215

b) 220

c) 225

d) 235

Solution: Let L.C.M. be l and H.C.F. be h. Then l = 45h

l + h =1150

This gives h =25 and l = 1125

Thus the second number = (25 * 1125)/125 = 225

## Question 2 Six bells commence tolling together and toll at intervals 2,4,6,8,10 and 12 seconds respectively. In 30 minutes how many times they toll together.

a) 4

b) 10

c) 15

d) 16

Solution: L.C.M. of 2,4,6,8,10,12 = 120

So they toll together after every 120 seconds i.e. 2 minutes. So in 30 minutes they toll together 30/2 + 1 = 16 times

## Question 3

The value of (0.625 * 0.0729 * 28.9)/(0.0017 * 0.025 * 8.1) is

a) 0.3825

b) 3.825

c) 38.25

d) 382.5

Solution: The sum of decimal places in numerator and denominator being the same, decimal point can be removed

(625*729*289) / (17*25*81) = 3825

## Algebra Aptitude Test Question 4

Trigonometry is the science of measuring triangles. To do well in any math aptitude test you must have good knowledge of trigonometric ratios and basic identities should be on tips. You may face a lot of questions about heights and distances like:

Find x if sin(x+36^) = cos x

Solution:

sin(x+36^) = cos x

cos(90^ - (x+36^)) = cos x

90^ - (x+36^) = x

2x = 54^

x= 27^

## Math Aptitude Test Question 5

Linear equations are part of all math aptitude tests. They can be age related problems, upstream, downstream problems etc

I am three times as old as my son. Five years later I shall be two and a half times as old as my son. What is my age?

Solution:

Let my age be x years and age of my son be y years.

(i) x = 3y

Five years later

(ii) x+5 = 5/2(y+5)

From (i) and (ii)

y=15 and x=45

## Math Aptitude Test Question 6

In almost all the tests questions from Volume and surface area can be expected like:

The number of coins 1.5 cm in diameter and 0.2cm thick to be melted to form a right circular cylinder of height 10 cm and diameter 4.5 cm is:

a) 380

b) 450

c) 472

d) 540

Solution: Volume of 1 coin = 22/7 *(1.5)/2*(1.5)/2 * 0.2 = 99/280 cm3

Volume of large cylinder = 22/7 *(4.5)/2*(4.5)/2 * 10 = (99*45)/28cm3

Number of coins = (99*45)/28 * 280/99 = 450

## Math Aptitude Test Question 7

The size of a wooden block is 5 * 10 * 20 cm3. How many whole such blocks you will take to construct a solid wooden cube of minimum size?

a) 6

b) 8

c) 12

d) 16

Solution: Size of each cube = 5 cm

So number of blocks = (5 * 10 * 20)/(5*5*5) = 8

## Numerical Aptitude Test Question 8

Find the odd man out - 1050, 510, 242, 106, 46, 16, 3

a) 510

b) 242

c) 106

d) 46

Solution:

2nd term = (Ist term - 30) / 2 = (1050-30)/2 = 510

3rd term = (2nd term - 26) / 2 = (510-26)/2 = 242

4th term = (3rd term - 22) / 2 = (242-22)/2 = 110

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