Explanation

The arithmetic mean, also known as the average, is calculated by adding the two numbers and dividing by 2:

(4+6)/2 = 10 /2=5
So, the arithmetic mean between 4 and 6 is 5.

Explanation

Explanation

The pattern of the series is:

1³ = 1, 2² = 4, 2³ = 8, 3² = 9, 3³ = 27

Following this pattern:

4² = 16 (skipped), 4³ = 64

So, the next number in the series is 64.

Explanation

The pattern follows: +12, +13, +14, +15, +16

74 + 16 = 90

Explanation

x + y = 30 ... (Equation 1)

x - y = 8 ... (Equation 2)

We can solve these equations by adding them together, which eliminates y:

2x = 38

Dividing both sides by 2 gives us:

x = 19

Now that we have x, we can find y by substituting x into Equation 1:

19 + y = 30

Subtracting 19 from both sides gives us:

y = 11

Now that we have both x and y, we can find their product:

Product = x * y

= 19 * 11

= 209

Explanation

729 = 27 × 27

√729 = √(27 × 27)

√729 = 27

Explanation

Let C's age be x years. Then, B's age = 2x years. A's age = (2x + 2) years.

∴ (2x + 2) + 2x + x = 27

⇒ 5x = 25

⇒ x = 5.

Hence, B's age = 2x = 10 years.

Explanation

The correct answer is:

2 is abscissa and 4 is ordinate

In an ordered pair (x, y), x is the abscissa (the value on the x-axis) and y is the ordinate (the value on the y-axis).

Explanation

To find the answer, check if 423 is divisible by any of the options:

423 ÷ 47 = 9

Explanation

To find the percentage, divide the distance covered by Abid (13 km) by the total distance (39 km), and multiply by 100:

(13/39) x 100 = 33.33%