Question
A candidate just passed by getting 30 answers correct by
attempting 65 of the total questions. Find the total number of questions in the examination if a candidate needs 25% marks. (All questions carry equal marks)Solution
Let the total number of questions be x. then, Percentage need in exam = 25% Correct answer = 30 percentage = (correct answer)/(total questions)
100 25 =Â
100 x = 120 Alternate method Given that 30 ≡ 25% 1 ≡
% 120 ≡ 100%
total number of questions = 120
Find the cube of 903.
Find the cube of 473.
Find the total surface area of cube whose volume is 64 m3
A cube has edge 13 m. Find its length of diagonal, surface area and volume.Â
Find the value of ∛ 32768
Find the value of ∛ 5832
A cube has edge 13 m. Find its length of diagonal, surface area and volume.
Find the value of ∛ 19683.
Find the value of ∛262144
Find the value of ∛ 15625