Question
The ratio of males to females appearing for an exam in
Ranchi is 13:24. It is known that 20% of the males and 25% of the females cleared the exam. If the number of candidates who failed the exam is 142, determine the total number of candidates who appeared for the exam.Solution
Let the number of males and females who appeared in the exam be 13x and 24x respectively.
According to the question,
(0.8 × 13x) + (0.75 × 24x) = 142
Or, x = 142/28.4 = 5
Total number of males and females who appeared in the exam = (13x + 24x) = 185
More Ratio and proportion Questions
- A series is given with one term missing. Choose the correct alternatives from the given ones that will complete the series.
57, 59, 56, 61, 54, ___ - Which letter-cluster will replace the question mark (?) in the following series?
NPQR, OORQ, PNSP, ____, RLUN - Which letter and number cluster will replace the question mark (?) to complete the given series?
LT6, KU12, IW24, FZ48, ____ - Select the number from among the given options that can replace the question mark (?) in the following series.
17, 18, 22, 31, 47, ___ - Which letter-cluster will replace the question mark (?) in the following series?
RGV, UME, ?, AYW, DEF
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