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The total number of students = 54 When 1 name was selected from 54 names, the probability that he was of section B = 18/54 = 1/3 But from the question, there are 18 students from the section B and the age of all 18 are different therefore, the probability of selecting one i.e. youngest student from 18 students will be 1/18.
If the volume of a cuboidal tank is 3240 m3 and the ratio of the length, width and height of tank is 6:5:4 respectively then find the height ...
The side of a square is equal to the diameter of a circle. The area of a square is 196 sq cm. what is the area of the circle?
A rectangular field has a perimeter of 82 meters, and the length of its diagonal measures 29 meters. Determine the area of the field.
The average cost of two chairs is Rs. 15000. The average cost decrease by 30% when one more chair is included. What is the cost price of the 3 rd <...
A rectangular ground is 90 metre long and 70 metre broad. If two 10 metre wide paths one parallel to the breadth and one parallel to the length, of theÂ...
A figure is formed by revolving a rectangular sheet of dimensions 7cm ×4cm about its length. What is the volume of   the figure. thus formed. (in c...
If x4 – 62x2 + 1 = 0, then a value of x 3 + x -3 can be:
The radius and height of a right circular cone are in the ratio 3: 4. If its curved surface area (in cm²) is 240 π, then its volume (in cm³...
Consider a parallelogram where the ratio between the height and the base is 14:9. Given that the area of this parallelogram is 1134 square centimeters,...
(155/3)% of the raindrops could have been collected, when 4 cm of rain has fallen on a part of land of area 3 km2, in a tank having a 200 m Ã...
