Question
In an examination, the average marks obtained by the
students is 40. After correcting the quantitative mistakes, the average of 50 students is reduced to 30 from 40 and the overall average of the student is reduced to 35. Then find the total number of students who participated in that examination.Solution
Let the total number of students be x Average marks obtained by the students = 40 Total marks = 40x After correcting the quantitative mistakes the average decreased by (40-30) = 10 marks Total reduction = 10 × 50 = 500 Now According to the Question, (40x-500)/x = 35 35x = 40x-500 x= 100 Total number of students = 100
- Among India's rock systems, which is the most recent geological formation?
Which among the following does not require a simple majority?
- When was the International Day of Yoga first observed?
With reference to the Money Bill, consider the following statements:
1. It can be introduced only in the Lok Sabha and not in the Rajya Sabha.
Kumbh Mela and Sangam are famously celebrated in which state of India? Â
Under which article of the Constitution, the Allahabad High Court has recently declared the UP Board of Madrasa Education Act 2004 unconstitutional?
- Which member of the first cabinet of free India (1947) had a different portfolio compared to their role in the Interim government (1946)?
- Longitudinal waves cannot travel through which of the following?
Which country became the first in Latin America to exit China’s Belt and Road Initiative (BRI)?
Which platform was introduced by Union Minister Piyush Goyal to foster innovation in India's startup ecosystem?
Relevant for Exams:
