Question
The average marks of 55 students in a class were calculated
as 72. However, there were errors in recording the marks of four students. The incorrect marks recorded were 84, 74, 70, and 88, but the actual marks of these students were 56, 32, 48, and 70, respectively. Find the correct average marks of the class.Solution
Total marks obtained by students = 72 × 55 = 3960
Total misread marks = (84 + 74 + 70 + 88) – (56 + 32 + 48 + 70) = 110
Desired Average = (3960 – 110)/55 = 70
Which Indian Navy ship was part of the La Perouse naval exercise in January 2025?
India’s foreign reserves do NOT consist of which of the following?
What was the theme of the UNAIDS report released in 2024?
Which Indian chess player won the FIDE Women’s World Cup 2025, defeating Koneru Humpy in the final?Â
- What is the focus of India’s new PM Surya Ghar Muft Bijli Yojana?
Who has been elected Chairperson of the Athletes’ Commission of the Indian Weightlifting Federation (IWLF)?
What is the focus of the Credit Guarantee Scheme for e-NWR-based Pledge Financing?
Which peafowl species is classified as Near Threatened by the International Union for Conservation of Nature ( IUCN) ?
'Rajaji National Park' is located in which state of India?
What was the Index of Industrial Production (IIP) growth in May 2025, marking a 9-month low?Â
Relevant for Exams:
