CUET UG 2025 — General Test Arithmetic

2025mcqeasy

If m is proportional to n and m = 5 when n =4, then what is the value of m when n = 18?

Official previous-year question

Held on 15 May 2025 · Verified 13 Jul 2026.

Options

A
7.5
B
12.5
C
17.5
D
22.5

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Solution

When m is proportional to n, this can be written as:

$m = k \times n$

where $k$ is a constant.

Given that $m = 5$ when $n = 4$ :

$5 = k \times 4$

$k = \frac{5}{4}$

$k = 1.25$

Using $k = 1.25$ to find m when $n = 18$ :

$m = k \times n$

$m = 1.25 \times 18$

$m = 22.5$

Alternatively, since the ratio remains constant in proportional relationships:

$\frac{m_1}{n_1} = \frac{m_2}{n_2}$

$\frac{5}{4} = \frac{m}{18}$

$m = \frac{5 \times 18}{4}$

$m = \frac{90}{4}$

$m = 22.5$

Therefore, when $n = 18$ , the value of $m = 22.5$ .

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Solution

When m is proportional to n, this can be written as:

$m = k \times n$

where $k$ is a constant.

Given that $m = 5$ when $n = 4$ :

$5 = k \times 4$

$k = \frac{5}{4}$

$k = 1.25$

Using $k = 1.25$ to find m when $n = 18$ :

$m = k \times n$

$m = 1.25 \times 18$

$m = 22.5$

Alternatively, since the ratio remains constant in proportional relationships:

$\frac{m_1}{n_1} = \frac{m_2}{n_2}$

$\frac{5}{4} = \frac{m}{18}$

$m = \frac{5 \times 18}{4}$

$m = \frac{90}{4}$

$m = 22.5$

Therefore, when $n = 18$ , the value of $m = 22.5$ .

CUET UG 2025 — General Test Arithmetic

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Solution

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CUET UG 2025 — General Test Arithmetic

Options

Did you get this right?

Solution

Your note

CUET UG Arithmetic in other years

More CUET UG Arithmetic questions

Other General Test topics for CUET UG

General Knowledge

Logical Reasoning

Quantitative Reasoning

Geometry

Current Affairs

Keep practicing Arithmetic