📊 Physics
Q. Which of the following is a semiconductor?
  • (A) Glass
  • (B) Silicon
  • (C) Wood
  • (D) Phosphorus
💬 Discuss
✅ Correct Answer: (B) Silicon
📊 Math
Q. An employee pays Rs. 26 for each day a worker and forfeits Rs. 7 for each day he idle. At the end of 56 days, if the worker got Rs. 829, for how many days did the worker remain idle?
  • (A) 21
  • (B) 15
  • (C) 19
  • (D) 13
💬 Discuss
✅ Correct Answer: (C) 19
📊 Math
Q. A is 60% more efficient than B. In how many days will A and B working together complete a piece of work which A alone takes 15 days to finish?
  • (A) 124/13 days
  • (B) 113/13 days
  • (C) 108/13 days
  • (D) 120/13 days
💬 Discuss
✅ Correct Answer: (D) 120/13 days
📊 Math
Q. A pipe can fill a tank in 0.9 hours and another pipe can empty in 0.7 hours. If tank is completely filled and both pipes are opened simultaneously then 450 liters of water is removed from the tank is 2.5 hours. What is the capacity of the tank?
  • (A) 200 liters
  • (B) 350 liters
  • (C) 456 liters
  • (D) 567 liters
💬 Discuss
✅ Correct Answer: (D) 567 liters
📊 Math
Q. A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is :
  • (A) 1/4
  • (B) 1/10
  • (C) 7/15
  • (D) 8/15
💬 Discuss
✅ Correct Answer: (D) 8/15
📊 Math
Q. A can lay railway track between two given stations in 16 days and B can do the same job in 12 days. With help of C, they did the job in 4 days only. Then, C alone can do the job in:
  • (A) 46/5 days
  • (B) 65/7 days
  • (C) 38/5 days
  • (D) 10 days
💬 Discuss
✅ Correct Answer: (C) 38/5 days
📊 Math
Q. The year next to 2003 will have the same calendar as that of the year 2003?
  • (A) 2024
  • (B) 2014
  • (C) 2009
  • (D) 2020
💬 Discuss
✅ Correct Answer: (B) 2014
📊 Math
Q. On 19th June, 1984 Monday falls. What day of the week was it on 19th June, 1985?
  • (A) Sunday
  • (B) Monday
  • (C) Tuesday
  • (D) Wednesday
💬 Discuss
✅ Correct Answer: (C) Tuesday
📊 Math
Q. Suppose today is Friday, what day of the week will it be 65 days from now?
  • (A) Saturday
  • (B) Sunday
  • (C) Friday
  • (D) Thursday
💬 Discuss
✅ Correct Answer: (B) Sunday
📊 Math
Q. How many seconds in 10 years?
  • (A) 31523500 sec
  • (B) 315360000 sec
  • (C) 315423000 sec
  • (D) 315354000 sec
💬 Discuss
✅ Correct Answer: (B) 315360000 sec

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