A. 23 years
B. 24 years
C. 25 years
D. None of these
✅ The correct answer is option A. 23 years.
187. At an inn there are provisions sufficient for 20 days for 40 people. At the end of every 10 days 5 people leave off. How many days the provision will be sufficient for new?
A. 20
B. 40
C. 30
D. none
✅ The correct answer is option D. none.
184. A tank is filled by three pipes with uniform flow. The first two pipes operating simultaneously fill the tank in the same during which the tank is filled by the third pipe alone. The second pipe fills the tank 5 hours faster than the first pipe and 4 hours slower than the third pipe. The time required by the first pipe is?
A. 6 hrs
B. 10 hrs
C. 15 hrs
D. 30 hrs
✅ The correct answer is option C. 15 hrs.
181. A family of 12 people had enough provision for 15 days. But 3 guests came for 2 days. How long the provisions will last for?
A. 8
B. 15
C. 12
D. 12.5
✅ The correct answer is option D. 12.5.
178. Out of 15 consecutive numbers, 2 are chosen at random. The probability that they are both odds or both primes is_________?
A. 10/17
B. 10/19
C. 46/105
D. Cannot be determined
✅ The correct answer is option D. Cannot be determined.
175. A box contains 3 blue marbles, 4 red, 6 green marbles and 2 yellow marbles. If four marbles are picked at random, what is the probability that none is blue?
A. 17/91
B. 33/91
C. 51/91
D. 65/91
✅ The correct answer is option B. 33/91.
A man can row at 5 km/hr in still water, if the river is running at 1 km/hr it takes him 75 minutes to row to a place and back. How far is the place?
A. 2.5km
B. 3km
C. 4 km
D. 5 km
✅ The correct answer is option B. 3km.
A man can row 6 kmph in still water. When the river is running at 1.2 kmph, it takes him 1 hour to row to a place and black. What is the total distance traveled by the man?
A. 6.24 km
B. 6 km
C. 5.76 km
D. 5.66 km
✅ The correct answer is option C. 5.76 km.
169. A and B starts a business with Rs.8000 each, and after 4 months, B withdraws half of his capital . How should they share the profits at the end of the 18 months?
A. 18:11
B. 22:13
C. 23:12
D. 11:9
✅ The correct answer is option A. 18:11.
167. What will be the cost of building a fence around a square plot with area equal to 289 sq ft, if the price per foot of building the fence is Rs. 58?
A. Rs. 3944
B. Rs. 3828
C. Rs. 4176
D. None of these
✅ The correct answer is option D. None of these.
Let the side of the square plot be a ft.
Let the side of the square plot be a ft.