Percentage · solved example
What is 25% of 480?
- 120Correct
- 140
- 100
- 96
- 150
Solution
25% is one fourth, so 25% of 480 is 480 divided by 4, which is 120.
State PSC & Services | BPSC TRE 4.0
Mathematics appears in the BPSC TRE 4.0 syllabus below. The official pattern does not break it into its own timed section, so treat the whole topic list as fair game.
The quantitative core of the railway papers: arithmetic, mensuration, and time-speed-distance built on a secondary-school foundation. Fluency with fractions, percentages and ratios underlies almost every question, so that is where practice pays back fastest.
Every topic in the official syllabus. The linked ones open a set of solved questions you can practise straight away.
Written to the BPSC TRE 4.0 pattern, with the answer key and the method behind it — a look at how the section is actually set before you drill the full topic sets.
Percentage · solved example
What is 25% of 480?
Solution
25% is one fourth, so 25% of 480 is 480 divided by 4, which is 120.
Order of operations · solved example
Find the value of 7 multiplied by 8, minus 6.
Solution
Do the multiplication first: 7 times 8 is 56, then subtract 6 to get 50.
LCM and HCF · solved example
The HCF (highest common factor) of 24 and 36 is:
Solution
The factors common to 24 and 36 are 1, 2, 3, 4, 6 and 12; the greatest of these is 12, so the HCF is 12.
Percentage · solved example
A student scored 45 out of 60 in a test. What is the percentage of marks scored?
Solution
Percentage is marks obtained divided by total, times 100: 45 / 60 x 100 = 75%.
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Mathematics shows up in every BPSC TRE 4.0 mock test, in the same interface, with sectional locking and negative marking.
BPSC TRE 4.0: 24-question practice mock
24 questions | 24 min
No. The BPSC TRE 4.0 written stage carries no negative marking, so it is worth attempting every Mathematics question you can.
The BPSC TRE 4.0 syllabus lists Number system, arithmetic and simplification, Algebra, geometry and mensuration at the school level, Data handling and basic statistics. Weight your revision towards the ones you are weakest on and confirm the emphasis against the paper analysis for recent cycles.
Every Mathematics question on this site is free and written to the exam pattern. Use the topic drills for instant-feedback practice, the daily quiz to keep the section warm, and the BPSC TRE 4.0 mock tests to sit it under a real clock with negative marking.