The average of 35 students in a class is 16 years. The average age of 21 students is 14. What is the average age of remaining 14 students? January 2, 2022January 2, 2022 administrator A. 15 yearsB. 17 yearsC. 18 yearsD. 19 years Share the Post Share the Post
The area of the largest circle that can be drawn inside a rectangle with sides 18cm and 14cm is_________? January 2, 2022January 2, 2022 administrator A. 49 Sq.cmB. 154 Sq.cmC. 378Sq.cmD. 1078 Sq.cm Share the Post Share the Post
The radius of a wire is decreased to one –third if volume remains the same length will increase January 2, 2022January 2, 2022 administrator A. 1 TimeB. 3 timesC. 6 timesD. 9 times Share the Post Share the Post
A solid consists of a circular cylinder with an exact fitting right circular cone placed on the top. The height of the cone is h. If the total volume of the solid is three times the volume of the cone then the height of the cylinder is________? January 2, 2022January 2, 2022 administrator A. 2hB. 4hC. 2h/3D. 3h/2 Share the Post Share the Post
n an election between two opponents, one got 65% of the total valid votes, 20% of the votes were invalid. If the total number of votes was 7500, the number of valid votes that the other candidate got, was: January 2, 2022January 2, 2022 administrator A. 2700B. 2900C. 3000D. 3100 Share the Post Share the Post
Find the greatest number which will divide 25, 73 and 97 as so to leave the same remainder in each case? January 2, 2022January 2, 2022 administrator A. 12B. 18C. 24D. 32 Share the Post Share the Post
Pipe A can fill a tank in 6 hours. Due to a leak at the bottom, it takes 9 hours for the pipe A to fill the tank. In what time can the leak alone empty the full tank? January 2, 2022January 2, 2022 administrator A. 16 hoursB. 15 hoursC. 18 hoursD. 17 hours Share the Post Share the Post
In a Circle of Radius 5 cm if AB and AC are two equal chords of length 6cm each, then the length of chord BC is___________? January 2, 2022January 2, 2022 administrator A. 24/5 cmB. 12/5 cmC. 7/5 cmD. None of these Share the Post Share the Post
A train 240 m long passes a pole in 24 seconds. How long will it take to pass a platform 650 m long? January 2, 2022January 2, 2022 administrator A. 65 secB. 89 secC. 100 secD. 150 sec Share the Post Share the Post
The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero? January 2, 2022January 2, 2022 administrator A. 0B. 1C. 10D. 19 Share the Post Share the Post