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📊 Geography
Q. A does half of a work in 10 days. How many days will he take to complete the full work?
  • (A) 15 days
  • (B) 18 days
  • (C) 20 days
  • (D) 25 days
💬 Discuss
✅ Correct Answer: (C) 20 days

Explanation: Half work in 10 days → full work in 20 days.

📊 Geography
Q. A and B together can complete a work in 4 days. B alone can complete it in 12 days. A alone can complete it in?
  • (A) 4 days
  • (B) 5 days
  • (C) 6 days
  • (D) 8 days
💬 Discuss
✅ Correct Answer: (C) 6 days

Explanation: 1/4 − 1/12 = 1/6.

📊 Geography
Q. A can do a work in 50 days. He worked for 20 days. What fraction of work remains?
  • (A) 2/5
  • (B) 3/5
  • (C) 1/5
  • (D) 4/5
💬 Discuss
✅ Correct Answer: (B) 3/5

Explanation: Work done = 20/50 = 2/5 → remaining = 3/5.

📊 Geography
Q. A can do a work in 10 days. B can do it in 15 days. They work alternately starting with A. In how many days will the work be completed?
  • (A) 5 days
  • (B) 6 days
  • (C) 7 days
  • (D) 8 days
💬 Discuss
✅ Correct Answer: (B) 6 days

Explanation: A+B work in 2 days = 1/10 + 1/15 = 1/6 → full work in 6 days.

📊 Geography
Q. A can complete a work in 45 days. B is 50% more efficient than A. B will complete the work in?
  • (A) 20 days
  • (B) 25 days
  • (C) 30 days
  • (D) 35 days
💬 Discuss
✅ Correct Answer: (C) 30 days

Explanation: 50% more efficiency → time = 45 × 2/3 = 30 days.

📊 Geography
Q. If 8 men can do a work in 12 days, how many days will 12 men take to complete the same work?
  • (A) 6 days
  • (B) 8 days
  • (C) 10 days
  • (D) 12 days
💬 Discuss
✅ Correct Answer: (B) 8 days

Explanation: Men × days = constant → (8×12)/12 = 8 days.

📊 Geography
Q. A can do a work in 18 days. B can do it in 27 days. If they work together for 6 days, what fraction of work is done?
  • (A) 1/2
  • (B) 2/3
  • (C) 5/9
  • (D) 4/9
💬 Discuss
✅ Correct Answer: (C) 5/9

Explanation: 1/18 + 1/27 = 5/54. In 6 days = 30/54 = 5/9.

📊 Geography
Q. A can do a job in 12 days. B is 25% less efficient than A. B can do the job in?
  • (A) 15 days
  • (B) 16 days
  • (C) 18 days
  • (D) 20 days
💬 Discuss
✅ Correct Answer: (B) 16 days

Explanation: Efficiency = 75% → time = 12 / 0.75 = 16 days.

📊 Geography
Q. A and B can complete a work in 7 days. A alone can complete it in 21 days. B alone can complete it in?
  • (A) 10.5 days
  • (B) 14 days
  • (C) 21 days
  • (D) 28 days
💬 Discuss
✅ Correct Answer: (A) 10.5 days

Explanation: 1/7 − 1/21 = 2/21 → time = 21/2 = 10.5 days.

📊 Geography
Q. A can complete 3/4 of a work in 15 days. How many days will he take to complete the whole work?
  • (A) 18 days
  • (B) 20 days
  • (C) 22 days
  • (D) 25 days
💬 Discuss
✅ Correct Answer: (B) 20 days

Explanation: 3/4 work in 15 days → full work in 20 days.

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