Question
Total number of students in a class is 1920, and the ratio of number of boys to girls is 7:9. If the number of boys and girls is increased by a% and (a – 2)% respectively, then the total number of students in the class will become 2208. Find the value of
Total number of students in a class is 1920, and the ratio of number of boys to girls is 7:9. If the number of boys and girls is increased by a% and (a – 2)% respectively, then the total number of students in the class will become 2208. Find the value of
a.(Can calculate approx. value)
So, the value of a is approximately 16.13%.More Percentage Questions
- 'U' spends 25% of his monthly income on food, 30% on rent, and 15% of the remaining amount on insurance. He saves the rest in a savings plan that gives sim...
- The value of A’s car is depreciating by 22% every year whereas the value of his house is appreciating by 16% each year as compared to the previous year. If...
- 28% of ‘k’ added to 72% of ‘l’ gives a total of 144. If ‘l’ is 48 more than ‘k’, then find the value of (2k – l).
- Income of Priya is Rs. 45,600, out of which she spent 30% on daily expenses, 15% on phone bills and saves the rest. If her income is increased by 12% and s...
- Anita spends 75% of her monthly salary and receives a commission of 5% on her salary every month. If her annual saving is Rs. 129600, find the commission s...
- A gave 40% of amount to B. B gave 15% of amount received from A to C. If amount received by C from B is Rs.120, then find the amount received by B from A.
- In a school, the average number of books that some numbers of boys have is 100 and average number of books that some numbers of girls have is 70. If each b...
- The value of A’s car is depreciating by 25% every year whereas the value of his house is appreciating by 15% each year as compared to the previous year. If...
- The strength of a club was 800 members in 2014. It rose by 40% in 2015, fell by 25% in 2016, and rose again by 15% in 2017. What was the total strength at ...
- The income of ‘A’ increases by 30% every year. If his income 3 years hence from now will be Rs. 34273.2, then find his income a year before from now.
Relevant for Exams:
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt
Think You're Ready for RBI Grade B?
RBI Grade B 2026 Phase 1 Memory Based Paper
- 200 Questions with Detailed Solutions
- Section-wise Coverage (GA, English, Quant & Reasoning)