Explanation

The correct value of 22/7 is approximately 3.14.

Explanation

1 inch = 60

2.5 inches = 2.5 x 60 = 150

Explanation

(9 + 43 - 4) = 48

48 ÷ 24 = 2

2 - 2 = 0

So, the correct answer is 0.

Explanation

Given expression: 68 - 13 + 21 ÷ 3 × 2

Following order of operations:

1. Division: 21 ÷ 3 = 7

2. Multiplication: 7 × 2 = 14

3. Now, the expression becomes:

68 - 13 + 14

= 68 - 13 = 55

= 55 + 14 = 69

Explanation

To determine significant figures in 10.03:

• All non-zero digits are significant → 1 and 3
• Zeros between non-zero digits are significant → 0 between 1 and 3
• Zeros after a decimal and a non-zero digit are also significant → the 0 after the decimal is significant

So: 1, 0, 0, 3 → 4 significant figures

Explanation

We are selecting three different posts here, so order matters.

Thus, total ways of selecting a President, VP and Water-boy from a group of 10 people would be 10P3.

Explanation

The set of whole numbers includes both odd and even numbers, making it larger and more inclusive.

Therefore, it can act as a universal set containing odd numbers and even numbers as subsets.

Explanation

A number divisible by 2, 3, and 5 must be divisible by 30 (since 2×3×5=30).

8940 ÷ 30 = 298, so 8940 is divisible by all three.

Explanation

To find the greatest capacity of a measuring jar that can exactly measure 165, 175, and 200 liters, we need to find the greatest common divisor (GCD) or highest common factor (HCF) of these numbers.

Let's find the prime factors:

165 = 3 * 5 * 11

175 = 5 * 5 * 7

200 = 2 * 2 * 2 * 5 * 5

The common factor among these is 5.

The greatest capacity of the measuring jar is: 5 liters

Explanation

1 kilometer = 1,000 meters

1 meter = 1,000 millimeters

So, 1 km = 1,000 × 1,000 = 1,000,000 mm