SSC CGL 2025 Tier 1 Quant PYQ – 15 Sep 2025 Shift 1 (25 Questions with Solutions)

SSC CGL 2025 Tier 1 Quant PYQ: 15 Sep Shift 1 Maths Questions Solved

This is the Quantitative Aptitude section of the SSC CGL 2025 Tier 1 paper held on 15 September 2025, Shift 1, reproduced on Aptitude360 with the actual questions.

Topic-wise questions in SSC CGL 2025 Tier 1 Quant

What this tells you: course of action

• Begin with Geometry and Mensuration. These carry about 50% of the questions, which makes them the best place for your first study sessions.
• Keep in rotation: Profit, Loss & Discount, Mixture & Alligation and Simplification & Approximation, a steady 29% that rewards regular practice once the first group feels comfortable.
• Save for the end: 5 one-question topics (21% together). Skim them last rather than building long study blocks around them.
• Splitting your study time: out of every 10 study sessions on this section, about 5 for the first group, 3 for the keep-in-rotation group and 2 for the leave-for-last group.

Key formulas for this SSC CGL Quant set

• Compound amount: \( A=P\left(1+\dfrac{r}{100}\right)^{n} \)
• Direct common tangent: \( L=\sqrt{d^{2}-(r_{1}-r_{2})^{2}} \)
• Transverse common tangent: \( M=\sqrt{d^{2}-(r_{1}+r_{2})^{2}} \)
• Pure liquid left after n replacements: \( x\left(1-\dfrac{y}{x}\right)^{n} \)