Question
This question is based on the following 3-digit
numbers: 543, 769, 552, 342, 245 (Example: 697 – First digit = 6, second digit = 9, and third digit = 7) If in each of the numbers, 1 is added to the first digit of every number, in how many numbers will the first digit be exactly divisible by the third digit of the same number?Solution
ATQ,
Add 1 to the first digit of each number and check if it's divisible by the third digit: 543 → 6 ÷ 3 ✅ 769 → 8 ÷ 9 ❌ 552 → 6 ÷ 2 ✅ 342 → 4 ÷ 2 ✅ 245 → 3 ÷ 5 ❌ ✅ Total valid numbers = 3
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