Explanation

The pattern of the series is:

6 × 0.5 = 3

3 × 4 = 12

12 × 0.5 = 6

6 × 4 = 24

24 × 0.5 = 12

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%

Explanation

Explanation

The total ratio parts are 3 + 5 = 8.

Seniors are 5 out of 8 parts, which is:

(5/8) x 100% = 62.5%

Explanation

Six tenths is the same as 6/10, which simplifies to 3/5 or 0.6.

Explanation

The mean proportional of two numbers is the square root of their product.

Mean proportional = √(4 × 16) = √64 = 8

The correct answer is: +8

Explanation

To multiply fractions, multiply the numerators and denominators:

(5 × 7) / (14 × 10) = 35 / 140 = 1/4

Explanation

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

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

Explanation

The pattern in the series is a decrease of 4, 8, 4, 2, ... (alternating between subtracting 4 and 8, then decreasing the subtraction by 2 each time).

Therefore, the next number in the series would be:

• 64 - 16 (4 + 8 + 4) = 48
• 48 - 8 (4 + 4) = 40
• 40 - 4 (4) = 36
• 36 - 2 (2) = 34
• 34 - 1 (1) = 33

So, the correct answer is: 33