Question
A candidate just passed by getting 25 answers correct by
attempting 60 of the total questions. Find the total number of questions in the examination if a candidate needs 20% marks. (All questions carry equal marks)Solution
Let the total number of questions be x. then, Percentage need in exam = 20% Correct answer = 25 percentage = (correct answer)/(total questions) 
100 20 = 100 x = 125 Alternate method Given that 25 ≡ 20% 1 ≡ % 125 ≡ 100% total number of questions = 125
More Percentage Questions
- What will come in the place of question mark (?) in the given expression?
(160 - 64) ÷ 24 X 50 = ?² + 31 40 of 30% of 220 = ? + 790
12% of 152 + 12% of 150 = ? of 5
What value should come in the place of (?) in the following questions?
80/ √? + 19²/ √? = ?(3/2)
25% of 300 + √(?) = 35% of 600 - 15% of 300
280 ÷ 14 + 11 × 12 – 15 × 6 = ?
7.4 × 8.2 + 3.5 × 4.5 = ? + 11.5 × 2.5
(288 ÷ 12 + 15 × 5 + 124) = ?
- Find the simplified value of the given expression.
30% of 600 –
/Quantitative_Aptitude/Simplification/233374...</a></li> <div class=)
