Mathematics · solved example
Find the simple interest on Rs 5000 at 8% per annum for 3 years.
- 1100
- 1200Correct
- 1300
- 1250
Solution
Simple interest = P × R × T ÷ 100 = 5000 × 8 × 3 ÷ 100 = 1200.
RRB JE | Computer Based Test 1
A compact, single-clock RRB JE practice mock: 28 original questions across Mathematics, General Science, General Intelligence & Reasoning and General Awareness, each with a worked solution. One third of a mark is deducted for a wrong answer.
| Section | Questions |
|---|---|
| MathematicsMathematics | 7 |
| General ScienceGeneral Science | 7 |
| General Intelligence & ReasoningGeneral Intelligence & Reasoning | 7 |
| General AwarenessGeneral Awareness | 7 |
A few questions from this test, with the answer key and the method behind it. The full set of 28 runs under a timer, and every solution is on the analysis screen once you submit.
Mathematics · solved example
Find the simple interest on Rs 5000 at 8% per annum for 3 years.
Solution
Simple interest = P × R × T ÷ 100 = 5000 × 8 × 3 ÷ 100 = 1200.
General Science · solved example
The largest gland in the human body is the:
Solution
The liver is the largest gland and the largest internal organ; it secretes bile and performs hundreds of metabolic functions.
General Intelligence & Reasoning · solved example
In a certain code, each letter is moved 3 places backward in the alphabet. How is "MILK" written in that code?
Solution
Moving every letter of MILK 3 places backward gives JFIH.
General Awareness · solved example
What is the SI unit of electric current?
Solution
The ampere is the SI unit of electric current.
Mathematics · solved example
Solve: 15 + 10 × 3
Solution
By BODMAS, multiply first: 10 × 3 = 30, then 15 + 30 = 45.
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Correct answer
+1
Wrong answer
-0.3333
Unanswered
0
Because a blank carries no penalty, guessing only pays when you can eliminate at least two options. The analysis screen after the test shows you exactly where guessing cost you marks.