Test: Mental Ability - Software Development MCQ

The pattern followed is,

In the first row,

The first figure is surrounded by two circles.

The second figure is surrounded by one circle.

The third figure is not surrounded by any circle.

In the second row,

The first figure is surrounded by one square.

The second figure is not surrounded by any square.

 In the third figure there is no outline.

In the third row,

The first figure is surrounded by two triangles.

The second figure is surrounded by one triangle.

And,

The third figure should not be surrounded by any triangle.

The correct image that fits is,

Hence, option 3 is the correct answer.

According to the information given in the question, we can draw the following diagram.

AC = 40 km
BC = 30 km
AB = AC - BC
AB = 40 - 30
AB = 10 km
Ravi is 10 km away from his starting point.
Hence, the correct answer is "10 km".

Given number: 

5934162

New number after digits are arranged in descending order:

9654321

Thus we can see only position of one digit is remain unchanged.

Hence, the correct answer is "One".

Given:

The side of the square = 22 cm

Formula used:

The perimeter of the square = 4 × a    (Where a = Side of the square)

The circumference of the circle = 2 × π × r     (Where r = The radius of the circle)

Calculation:

Let us assume the radius of the circle be r

⇒ The perimeter of the square = 4 × 22 = 88 cm

⇒ The circumference of the circle = 2 × π ×  r

⇒ 88 = 2 × (22/7) × r

⇒ 

⇒ r = 14 cm

∴ The required result will be 14 cm.

In the question,

11² = 121

13² = 169

17² = 289

19² = 361

23² = 529

24² = 576

Thus we can say except for (24)² , all the given number is a square of a prime number.

Hence, Option (2) is correct.

Given:

Five years ago, father's age was 5 times that of his son

After 3 years father will be 3 times as old as his son

Calculation:

Let the present age of son be x years 

Present age of father be y years 

According to the question,

Five years ago, father's age was 5 times that of his son

(y - 5) = 5 (x - 5)

⇒ y - 5 = 5x - 25 

⇒ y - 5x + 20 = 0     ---- (i)

After 3 years father will be 3 times as old as his son

(y + 3) = 3(x + 3)

⇒ y + 3 = 3x + 9

⇒ y - 3x - 6 = 0      ---- (ii)

Solving equation (i) and (ii) we get,

x = 13

∴ Present age of son is 13 years

Given:

Distance travelled by the object in 4 sec = 24 m

Distance travelled by the object in 2 sec = 15 m

Formula used:

Distance = Speed × time

Average speed = Total distance/Total time

Calculation:

Total distance travelled by the object = 24 + 15 = 39 m

Total time taken = 4 + 2 = 6 sec

Average speed = 39/6 

⇒ 6.5 m/s

∴ The average speed of the object is 6.5 m/s.

Given:

Number of work completed by Rita and Meena = 10 days

Number of work completed by Rita alone = 15 days

Formula used:

Work = Efficiency × Time

Calculation:

LCM of 10 and 15 is 30

Efficiency of Rita and Meena = (30/10) = 3 units/day

Efficiency of Rita = (30/15) = 2 units/day

Efficiency of Meena = [30/(3 – 2)] units/day

⇒ (30/1) unit/day

⇒ 30 days

∴ The required time to complete the work by Meena is 30 days

The Venn diagram that best represents the relationship between Crockery, Plate, and Bowl is shown below:

Bowl and Plate are name of Crockery items.

Hence, ‘option 3’ is the correct answer.

Hence, the above image is the correct answer.