Which of the following numbers are divisible by 9?
(i) 524618 (ii) 7345845 (iii) 8987148

Answer

To determine which of the given numbers are divisible by 9, we will use the rule of divisibility by 9. According to this rule, a number is divisible by 9 if the sum of its digits is divisible by 9. Let's analyze each number step by step.

### Step 1: Check the first number, 524618
1. **Sum the digits**:
- 5 + 2 + 4 + 6 + 1 + 8 = 26
2. **Check divisibility**:
- 26 is not divisible by 9 (since 9 x 2 = 18 and 9 x 3 = 27).

**Conclusion**: 524618 is **not divisible** by 9.

### Step 2: Check the second number, 7345845
1. **Sum the digits**:
- 7 + 3 + 4 + 5 + 8 + 4 + 5 = 36
2. **Check divisibility**:
- 36 is divisible by 9 (since 9 x 4 = 36).

**Conclusion**: 7345845 is **divisible** by 9.

### Step 3: Check the third number, 8987148
1. **Sum the digits**:
- 8 + 9 + 8 + 7 + 1 + 4 + 8 = 45
2. **Check divisibility**:
- 45 is divisible by 9 (since 9 x 5 = 45).

**Conclusion**: 8987148 is **divisible** by 9.

### Final Summary:
- **524618**: Not divisible by 9
- **7345845**: Divisible by 9
- **8987148**: Divisible by 9