1:2:3. Search

Q:

The ratio of marks obtained by a student was 1:2:3. The school decided to allow grace marks of 5% for each subject. Find the student's new ratio.

A) 1:2:3	B) 2:3:4
C) 2:3:1	D) 3:2:1

Answer & Explanation Answer: A) 1:2:3

Explanation:

Report Error

Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

Q:

The measures of the three angles of a triangle are in the ratio 1:2:3. What is the measure of the biggest angle?

A) 30°	B) 60°
C) 90°	D) 120°

Answer & Explanation Answer: C) 90°

Explanation:

Report Error

Filed Under: Simplification
Exam Prep: Bank Exams

Q:

The average of ages of threee persons is 60 years . Those ages are in the proportion of 1:2:3. what is the age of the youngest one among them?

Answer

Suppose the ages of three persons are x, 2x, 3x years respectively

$\Rightarrow \frac{x+2x+3x}{3}=60$

$\Rightarrow 6x=180$

$\Rightarrow x=30$

Hence, age of youngest person = x = 30 years.

Workspace

Report Error

Subject: Problems on Ages