All Free Mathematics MCQs with Answers
Every Mathematics question in the bank, across all chapters, each with the correct answer and a written explanation. Free and unlimited, with no account needed.
1,551 questions · page 42 of 78
- A. 30
- B. 40
- C. 50
- D. 15
Explanation: The original supply is 40 soldier-days. During the first 10 days, 10 soldier-days are used, leaving 30 soldier-days; when the number of…
Correct answer: 15- A. 20
- B. 40
- C. 30
- D. none
Explanation: The provisions equal 40 people × 20 days = 800 person-days. The first 10 days use 400 person-days, and the next 10 days use 35 × 10 = 350…
Correct answer: none- A. 50 days
- B. 90 days
- C. 65 days
- D. 55 days
Explanation: The total food represents 30 x 1 = 30 man-days in units of the original garrison's daily consumption.
Correct answer: 90 days- A. 45 days
- B. 35 days
- C. 70 days
- D. 80 days
Explanation: After 5 days, the food has 40 - 5 = 35 days of provision remaining for the original number of men.
Correct answer: 70 days- A. 12 days
- B. 5 days
- C. 9 days
- D. 6 days
Explanation: The original stock equals 500 men x 9 days = 4500 man-days. The first 3 days use 500 x 3 = 1500 man-days, leaving 3000 man-days; with 600…
Correct answer: 5 days- A. 8
- B. 7
- C. 6
- D. 5
Explanation: The spending rate is Rs. 850 ÷ (12 people x 10 days) = Rs. 850 ÷ 120 person-days. For 8 people to spend Rs. 340, the time is Rs.
Correct answer: 6- A. 5
- B. 6
- C. 4
- D. 10
Explanation: The provisions equal 500 people x 6 days = 3000 person-days. The first 2 days consume 500 x 2 = 1000 person-days, leaving 2000…
Correct answer: 5- A. 10
- B. 15
- C. 16
- D. 12
Explanation: The injections represent 80 patients x 15 days = 1200 patient-days. With 80 + 40 = 120 patients, they last 1200 ÷ 120 = 10 days.
Correct answer: 10- A. 90
- B. 72
- C. 36
- D. 108
Explanation: One field requires 18 cattle x 12 days = 216 cattle-days, so 3 fields require 3 x 216 = 648 cattle-days.
Correct answer: 108- A. 300
- B. 200
- C. 250
- D. 350Downloading Digital Educational Resources
Explanation: The consumption rate is 250 kg ÷ (25 men x 20 days) = 250 kg ÷ 500 man-days = 0.5 kg per man-day.
Correct answer: 250- A. 40
- B. 50
- C. 30
- D. 56
Explanation: The provisions equal 800 men x 50 days = 40,000 man-days. For 800 + 200 = 1000 men, the duration is 40,000 man-days ÷ 1000 men = 40 days.
Correct answer: 40- A. 15
- B. 12
- C. 10
- D. 20Finding Low Interest Personal Loans
Explanation: The food stock represents 1200 men x 10 days = 12,000 man-days. For 1000 men, it will last 12,000 man-days ÷ 1000 men = 12 days.
Correct answer: 12- A. 2 : 3 : 4
- B. 3 : 2 : 4
- C. 3: 2 : 1
- D. 3: 4 : 7
Explanation: Profit is shared according to capital multiplied by the time invested. The capital-time products are A: Rs.
Correct answer: 3: 4 : 7- A. 4 months
- B. 5 months
- C. 6 months
- D. 8 months
Explanation: A's capital-time product for 12 months is Rs. 85,000 x 12 months = 1,020,000 Rs.-months.
Correct answer: 8 months- A. 7:6:10
- B. 12:15:16
- C. 42:45:56
- D. Cannot be determined
- E. None of these
Explanation: Ameen invests Rs. 70,000 for 36 months, giving Rs. 70,000 x 36 months = 2,520,000 Rs.-months. Rahim invests Rs.
Correct answer: 12:15:16- A. Rs. 7500
- B. Rs. 9000
- C. Rs. 9500
- D. Rs. 10,000
- E. None of these
Explanation: A contributes Rs. 20,000 x 24 months = 480,000 Rs.-months, B contributes Rs.
Correct answer: Rs. 7500- A. Rs. 9423
- B. Rs. 10,250
- C. Rs. 12,500
- D. Rs. 14,000
- E. None of these
Explanation: Sameena's capital-time product is Rs. 50,000 x 36 months = 1,800,000 Rs.-months, while Nida's is Rs.
Correct answer: None of these- A. Rs. 1883.78
- B. Rs. 2380
- C. Rs. 3690
- D. Rs. 3864
Explanation: Profit is divided according to capital multiplied by the time invested. Kamal's investment-time is Rs. 9000 x 12 = Rs.
Correct answer: Rs. 2380- A. Rs. 10,500, Rs. 13,500, Rs. 16,500
- B. Rs. 11,500, Rs. 13,000, Rs. 16,000
- C. Rs. 11,000, Rs. 14,000, Rs. 15,500
- D. Rs. 11,500, Rs. 12,500, Rs. 16,500
Explanation: Since all three partners invest for the same period, their profit ratio is 35000:45000:55000 = 7:9:11. The total of 27 parts is Rs.
Correct answer: Rs. 10,500, Rs. 13,500, Rs. 16,500- A. Rs. 5400
- B. Rs. 7200
- C. Rs. 8400
- D. Rs. 9600
Explanation: Anees and Raees share the profit in the ratio of their capitals, 22500:35000 = 9:14. Raees therefore receives 14/23 of Rs.
Correct answer: Rs. 8400