A and B started a business by investing ₹48,000 and ₹72,000 respectively. After 6 months, A withdrew half of his capital, while B…

Quantitative Aptitude ·Previously asked in SSC CGL 2025

View the full solved paper: SSC CGL 2025 Tier I - 13 Sep 2025, Shift 1 (13 Sep 2025, Shift 1)

Question

A and B started a business by investing ₹48,000 and ₹72,000 respectively. After 6 months, A withdrew half of his capital, while B increased his capital by ₹24,000. At the end of the year, they earned a total profit of ₹55,000. What is B's share in the profit?

  1. A. ₹26,500
  2. B. ₹28,000
  3. C. ₹38,500 (Correct answer)
  4. D. ₹36,000

Correct Answer

Option C — ₹38,500

Detailed Solution & Explanation

The correct answer is ₹38,500.

Key Points

  • Capital changes mid-year, so compute each partner's capital × time in two halves:
    • A: 48,000 × 6 + 24,000 × 6 = 288,000 + 144,000 = 432,000
    • B: 72,000 × 6 + 96,000 × 6 = 432,000 + 576,000 = 1,008,000
  • Ratio A : B = 432 : 1,008 = 3 : 7, totalling 10 parts.
  • B's share = 7/10 × 55,000 = ₹38,500.

Additional Information

  • "Withdrew half his capital" leaves 24,000, and "increased by ₹24,000" makes B's second-half capital 96,000 — read both phrasings carefully, as one is a proportion and the other an absolute amount.
  • The general rule for any number of capital changes is to break the year into intervals of constant capital, compute capital × months for each, and sum.
  • A quick sanity check: B invested more and then added further, so B's share must exceed half the profit — which immediately rules out ₹26,500.

प्रश्न (हिन्दी में)

A और B ने क्रमशः ₹48,000 और ₹72,000 का निवेश करके एक व्यवसाय शुरू किया। 6 महीने बाद, A ने अपनी आधी पूंजी निकाल ली, जबकि B ने अपनी पूंजी में ₹24,000 की वृद्धि की। वर्ष के अंत में, उन्होंने कुल ₹55,000 का लाभ कमाया। लाभ में B का हिस्सा क्या है?

  1. A. ₹26,500
  2. B. ₹28,000
  3. C. ₹38,500
  4. D. ₹36,000

Topics covered: Partnership Ratio & Proportion