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MCQ
What is the value of x so that the seven-digit number 8439 × 53 is divisible by 99?
Options
9
4
3
6
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Solution
4
Explanation:
8439 × 53 is divisible by 99
i.e. given number is divisible by 11
∴ (3 + x + 3 + 8) – (5 + 9 + 4) = 0
∴ x = 4
Concept: Inverse Trigonometric Functions - Inverse Trigonometric Functions - Principal Value Branch
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