Explanation

1 meter (m) = 1000 millimeters (mm)

1 meter (m) = 100 centimeters (cm)

1 centimeter (cm) = 10 millimeters (mm)

1 millimeter (mm) = 0.1 centimeters (cm)

1 kilometer (km) = 1000 meters (m)

Explanation

The pattern of the sequence is doubling the previous term:

• 10 × 2 = 20
• 20 × 2 = 40
• 40 × 2 = 80
• 80 × 2 = 160

So, the next number in the sequence is 160.

Explanation

"Father of my brother" refers to Abdul's father.

"Only daughter of the father" refers to Abdul's sister (since Abdul's father has only one daughter).

"He is the son of..." refers to Anwar being the son of Abdul's sister.

Therefore, Abdul is Anwar's:

Maternal Uncle

Explanation

• The odd one out is: 54
• The other numbers in the list (10, 25, 45, 75) all end in 5, while 54 ends in 4.

Explanation

To find the answer, we need to calculate the percentage step by step:

• 20% of 30% = (20/100) × (30/100) = 6/100 = 6%
• 10% of 6% = (10/100) × (6/100) = 0.6/100 = 0.6%

So, the correct answer is: 0.6%

Explanation

If A is the father of C and C is the sister of D, then A is also the father of D; since D is the son of B, this means B is the wife of A, making B the sister-in-law of E (A's brother). 

Explanation:

A is the father of C and D are siblings. 

D is the son of B. 

Therefore, B is the mother of D and the wife of A. 

Since E is the brother of A, B becomes E's sister-in-law. 

Explanation

The pattern in the series is:

A (1st letter) + Z (26th letter)

B (2nd letter) + Y (25th letter)

C (3rd letter) + X (24th letter)

Continuing the pattern:

D (4th letter) + W (23rd letter)

The correct answer is: DW

Explanation

As we all know

Circumference of the circle: 2πr

The radius of the circle: r

Ratio = 2πr : r = 2πr/r = 2π

Thus we conclude that 2π:1

Explanation

Adding two equal fractions (1/4 + 1/4) results in doubling the numerator:

1/4 + 1/4 = 2/4 = 1/2

Explanation

The correct relationships are:

• A is South of B
• C is East of B

A is South-West of C