CUET UG 2025 — General Test Arithmetic

2025mcqeasy

A sum of money becomes thrice of itself in 20 years. Find the simple interest rate per annum?

Official previous-year question

Held on 14 May 2025 · Verified 13 Jul 2026.

Options

A
6.66 %
B
12 %
C
10 %
D
8.33 %

Did you get this right?

Solution

A sum of money becomes thrice of itself in 20 years means if the principal is $P$ , the final amount after 20 years is $3P$ .

The interest earned is:

Simple Interest = Final Amount - Principal

Simple Interest = $3P - P = 2P$

The simple interest formula is:

$SI = \frac{P \times R \times T}{100}$

Where $SI$ is Simple Interest, $P$ is Principal, $R$ is Rate per annum, and $T$ is Time in years.

Given:

$SI = 2P$
$T = 20$ years
$P = P$

Substituting into the formula:

$2P = \frac{P \times R \times 20}{100}$

$2 = \frac{R \times 20}{100}$

$200 = R \times 20$

$R = \frac{200}{20}$

$R = 10$

Therefore, the simple interest rate per annum is 10%.

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Solution

A sum of money becomes thrice of itself in 20 years means if the principal is $P$ , the final amount after 20 years is $3P$ .

The interest earned is:

Simple Interest = Final Amount - Principal

Simple Interest = $3P - P = 2P$

The simple interest formula is:

$SI = \frac{P \times R \times T}{100}$

Where $SI$ is Simple Interest, $P$ is Principal, $R$ is Rate per annum, and $T$ is Time in years.

Given:

$SI = 2P$
$T = 20$ years
$P = P$

Substituting into the formula:

$2P = \frac{P \times R \times 20}{100}$

$2 = \frac{R \times 20}{100}$

$200 = R \times 20$

$R = \frac{200}{20}$

$R = 10$

Therefore, the simple interest rate per annum is 10%.

CUET UG 2025 — General Test Arithmetic

Options

Did you get this right?

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