Mental Ability Test

Result

Mental Ability Test - 18

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Rank
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Weekly Quiz Competition

Question 1
1 / -0

The length of a rectangle is \(16\) m more than its breadth. If the perimeter of the rectangle is \(56\) m. Find its length and breadth.

A
\(22\) m and \(6\) m

B
\(10\) m and \(6\) m

C
\(20\) m and \(4\) m

D
\(18\) m and \(6\) m

Solution

Let the length of the rectange is \(x\) m. The breadth of the rectangle be \(x-16\) m

Now we have,

Perimeter of the rectangle \(=56\) m

\(\Rightarrow 2\)(length \(+\) breadth) \(=56\)

\(\Rightarrow 2 (x+x-16))=56\)

\(\Rightarrow 2(2 x-16)=56\)

\(\Rightarrow 4 x-32=56+32\)

\(\Rightarrow 4 x=56+32\)

\(\Rightarrow {x}=\frac{88}{4}\)

\(=22\) m

\(\therefore\) The length of the rectangle \(=22 \) m and the breadth of the rectangle \(=({x}-16)\) m

\(=(22-16)\) m

\(=6\) m

So, the length and breadth of the rectangle are \(22\) m and \(6\) m respectively.

Hence, the correct option is (A).
Question 2
1 / -0

3/4^th of a tank is full of water. If 5 litres are added to it, then 4/5^th of the tank gets full. What is the capacity of the tank?

A
75 litres

B
80 litres

C
100 litres

D
120 litres
Question 3
1 / -0

In a quiz of 100 questions, 1 mark is given for a correct answer, and marks is deducted for a wrong answer. If John attempted all questions and got 75 marks, how many questions did he get right?

A
75

B
78

C
80

D
85
Question 4
1 / -0

In a class, 30% of the students are girls. If there are 15 girls, then what is the total number of students?

A
40

B
50

C
60

D
80

Solution

It is given that, there are 15 girls in a class and 30% of the total students are girls.

Let the total number of students be \(x\). Therefore, according to the question,

30% of total students = 15

\(\Rightarrow 30\%\) of \( x = 15\)

\(\Rightarrow \frac{30}{100} × x=15\)

\(\Rightarrow x=\frac{15×10}{3}=50\)

Therefore, there are total 50 students in the class.

Hence, the correct option is (B).
Question 5
1 / -0

Find the missing number.

? 4 = 9.63

A
32.58

B
35.82

C
38.52

D
38.56
Question 6
1 / -0

Area of rectangle is 36 cm². If the length of the rectangle is , find its width.

A
_⁵

B

C
7

D
None of these
Question 7
1 / -0

The ratio of runs scored by Yuvraj and Dravid in a match is 5 : 3. If Yuvraj scored 175 runs, how many runs did Dravid score?

A
35 runs

B
70 runs

C
105 runs

D
140 runs
Question 8
1 / -0

The product of any four consecutive integers can be exactly divided by which of the following number:

A
24

B
9

C
18

D
15

Solution

The product of the smallest four consecutive integers,

⇒ 1 × 2 × 3 × 4

⇒ 24

∴ 24 is the number that will divide the product of any four consecutive integers.

Hence, the correct option is (A).
Question 9
1 / -0

Find the volume of a cube of side 30 cm.

A
900 cm³

B
9000 cm³

C
27000 cm³

D
2700 cm³
Question 10
1 / -0

Jack started a question at 1:03 p.m. and completed it at 1:06 p.m. How many seconds did he take to solve the question?

A
60 seconds

B
120 seconds

C
180 seconds

D
240 seconds
Question 11
1 / -0

An article is sold at Rs. 4,500 with 10% loss. At what price should it be sold to earn 10% profit?

A
Rs. 5,000

B
Rs. 4,500

C
Rs. 4,000

D
Rs. 5,500
Question 12
1 / -0

Which of the following options is the lowest form of ^?

A

B

C

D
Question 13
1 / -0

What will be the next term in the given pattern?

10, 15, 20, 25, 30, 35…

A
52

B
47

C
45

D
40
Question 14
1 / -0

What is the place value of 9 in 2.389?

A
Tenth

B
Hundredth

C
Thousandth

D
Ten thousandth
Question 15
1 / -0

What will be the resultant figure if figure (X) is rotated 270 degree in clockwise direction?

A

B

C

D