If 19 , 57 , 81 , and y are in proportion, then the value of y is:

Question

Question

This question was previously asked in

RPF Constable 2024 Official Paper (Held On 02 Mar, 2025 Shift 3)

Answer 1

Given:

19, 57, 81, and y are in proportion.

Formula Used:

If four numbers a, b, c, and d are in proportion, then a/b = c/d.

Calculation:

Here, a = 19, b = 57, c = 81, and d = y.

According to the formula:

⇒ 19 / 57 = 81 / y

Cross-multiplying:

⇒ 19y = 57 × 81

⇒ 19y = 4617

Dividing both sides by 19:

⇒ y = 4617 / 19

⇒ y = 243

The correct answer is option 4.

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