SSC is well known for the recruitment of Group ‘**B**’ and ‘**C**’ posts under the Ministries/Departments in The Government of India. SSC organizes various examinations like Combined Graduate Level examination, Combine Higher Secondary Level, Stenographer and for SI/DP/CAPF, etc., throughout the year having almost the same Exam Pattern. The Exam paper is comprised of basically 4 subjects.

a. General Intelligence & Reasoning

b. English language & Comprehension

c. Quantitative Aptitude

d. General knowledge

For more detail, click the link given below.

**SSC SI, CAPF & ASI Exam 2015: Exam Pattern**

**SSC Combined Higher Secondary Level (10+2) Exam 2014: Exam Pattern**

**SSC JHT & Hindi Pradhyapak and Sr. / Jr. Translators Exam 2014: Exam Scheme & Syllabus**

**SSC Stenographer 2016: Take a look of Exam Pattern, Syllabus and Selection Procedure**

So, Jagranjosh.com has introduced a brief plan for revising topics at the time of examination. In this article, **Ratio** **and Proportion ** which sometimes appear more difficult to understand in terms of Human Relationship.

**Ratio and Proportion**

Ratio and Proportion is one of the basic concepts used widely in Quantitative Aptitude section. Concepts from ratios are used to solve questions in Averages, Profit & Loss, Data Interpretation etc.

If the ratio between first and second quantity is a: b and third and fourth is c:d.

**Inverse proportion: -** The two given quantities are so related that if one quantity increases (or decreases) then the other quantity also decreases (or increases).

Example 2.If 10 men can do a work in 20 days then in how many days 20 men can do that work?

Sol 2. Here if men increase then days should decrease, so this is a case of inverse proportion, so

Therefore, three rice must be mixed in 39: 20: 20 ratios to have a new mixture of rice.

**1. A certain amount was to be distributed among A, B and C in the ratio 2: 3: 4 respectively, but was erroneously distributed in the ratio 7: 2: 5 respectively. As a result of this, B got Rs 40 less. What is the amount?** **(IBPS CWE PO MT 2012)**

(1) Rs. 210

(2) Rs. 270

(3) Rs. 230

(4) Rs. 280

(5) None of these

**2. Rs.73,689/- are divided between A and B in the ratio 4: 7. What is the difference between thrice the share of A and twice the share of B? (IBPS CWE PO MT 2012)**

(1) Rs. 36,699

(2) Rs. 46,893

(3) Rs. 20,097

(4) Rs. 26,796

(5) Rs. 13,398