Question What is the average of first five natural numbers? Type multiple_choice Option 5 incorrect Option 2 incorrect Option 3 correct Option 4 incorrect Solution: Sum of first five natural numbers =1+2+3+4+5 = 15Number of quantities = 5On putting these values in formula:Average = 15/5= 3
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Question Two boys start running at the same time in the same direction at a speed of 10 km/hr and 12 km/hr respectively. In what time they will be 8 km apart? Type multiple_choice Option 3 hours incorrect Option 4 hours correct Option 5 hours incorrect Option 6 hours incorrect Solution : Both the boys
Q. A power shovel is having 1.8 m3 excavation output per batch of operation. The average cycle time of the batch operation is 45 seconds. The lost time per hour of the excavation activity is 10 minutes. Assume six working hours of operation per day. The amount of soil excavated by the power shovel per
Question Two pipes can fill a tank in 10 and 14 minutes respectively. A third pipe can empty the tank at the rate of10 liters/minute. If all the pipes working together can fill the empty tank in 8 minutes,what is the capacity of the tank? Type multiple_choice Option 210 liters incorrect Option 215.4 liters correct
Q. A depressed portion of a land is identified by three closed contours, as shown in the figure below. The area bounded by three contour lines are 6 m2, 24 m2 and 96 m2 respectively. The contour interval is 1 m. Using prismoidal method, the volume of the earth needed to fill the land depression
Question A tank can be filled in 10 hours. After a leak in its bottom, it takes 12 hours to fill the tank. Find the time taken by the leak to empty the full tank? Type multiple_choice Option 45 hours incorrect Option 60 hours correct Option 50 hours incorrect Option 55 hours incorrect Solution :
Question Two pipes can fill a tank in 6 hours and 8 hours respectively. A third pipe can empty the same tank in 12 hours. If all the pipes start working together, how long it will take to fill the tank? Type multiple_choice Option 4 hours incorrect Option 4.5 hours incorrect Option 4.8 hours correct
Q. The internal dimension of a room is 10m × 10m × 4m (height). The total area of the doors and windows are 16 m2. Keeping the doors and windows closed, the reverberation time of the room becomes 1.2 second. Assume all the interior surfaces including doors and windows have same sound absorption coefficient. If
Aditya Samant becomes India’s 83rd Grandmaster at Biel Chess Festival: Aditya Samant, hailing from Maharashtra, achieved the title of India’s 83rd Grandmaster by obtaining his third GM norm during the Master Tournament (MTO) at the Biel International Chess Festival. His adventure began in August 2022 with his first GM norm at the Abu Dhabi Masters,
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Question Three pipes A, B and C can fill a cistern in 8 minutes,12 minutes and 16 minutes respectively. What is the time taken by three pipes to fill the cistern when they are opened together? Type multiple_choice Option 3.7 minutes correct Option 4 minutes incorrect Option 4.5 minutes incorrect Option 5 minutes incorrect Solution
