Question : The number of students in a class has increased by 20% and the number has now become 66. Initially, the number was:
Option 1: 45
Option 2: 50
Option 3: 55
Option 4: 60
Latest: SSC CGL preparation tips to crack the exam
Don't Miss: SSC CGL complete guide
New: Unlock 10% OFF on PTE Academic. Use Code: 'C360SPL10'
Correct Answer: 55
Solution : Given: The number of students in a class has increased by 20% and the number has now become 66. Let the initial number of students be $x$. According to the question, ⇒ $\frac{120x}{100} = 66$ ⇒ $x = 55$ Hence, the correct answer is 55.
Candidates can download this ebook to know all about SSC CGL.
Answer Key | Eligibility | Application | Selection Process | Preparation Tips | Result | Admit Card
Question : A student's marks were wrongly entered as 65 instead of 45. Due to this, the average marks for the class got increased by $\frac{1}{3}$. The number of students in the class is:
Question : From 1980 to 1990, the population of the country increased by 20%. From 1990 to 2000, the population of the country increased by 20%. Over 2000-2010, the population of the country increased by 20%. Then, the overall increased population (in percentage) of the country from
Question : A man spends 60% of his income on different items. His income has increased by 20% and his expenditure has also increased by 10%. Find the percentage increase in his savings.
Question : The average mark obtained by a class of 60 students is 65. The average marks of half of the students were found to be 85. The average marks of the remaining students are:
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile