When the integer n is divided by 18, the quotient is x and the remainder is 6, When the integer n is divided by 25, the quotient is y and the remainder is 15. Which of the following is true?

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SSC CHSL Exam 2024 Tier-I Official Paper (Held On: 03 Jul, 2024 Shift 4)
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  1. 25y - 18x = 9
  2. 18x - 25y = 9
  3. 18x + 25y = 9
  4. 25y +18x = 9

Answer (Detailed Solution Below)

Option 2 : 18x - 25y = 9
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SSC CHSL General Intelligence Sectional Test 1
25 Qs. 50 Marks 18 Mins

Detailed Solution

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Given:

When the integer n is divided by 18, the quotient is x and the remainder is 6.

When the integer n is divided by 25, the quotient is y and the remainder is 15.

Formula Used:

n = 18x + 6

n = 25y + 15

Calculation:

Since both expressions are equal to n, we can set them equal to each other:

18x + 6 = 25y + 15

⇒ 18x - 25y = 15 - 6

⇒ 18x - 25y = 9

The correct equation is 18x - 25y = 9.

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