Average

The average age of 30 students in a group is 18 years. When the teacher’s age is included, the average age of the group increases by 1 year. What is the teacher’s age (in years)? एक समूह में 30 विद्यार्थियों  की औसत आयु 18 वर्ष है। जब शिक्षक की आयु को आयु शामिल की जाती […]

The average weight of a group of 20 women was calculated as 58.5 kg and it was later discovered that the weight of one of the women was read as 35 kg, whereas her actual weight was 65 kg. What is the actual average weight of the group of 20 women? 20 महिलाओं के एक

The average weight of Anwar, Amit and Gopal is 45 kg. If the average weight of Anwar and Amit be 43 kg and that of Amit and Gopal be 42 kg, then the weight of Amit (in kg) is: अनवर, अमित और गोपाल का औसत वजन 45 kg है। यदि अनवर और अमित का औसत

A class of 30 students appeared in a test. The average score of 12 students is 80, and that of the rest is 70. What is the average score of the class? 30 छात्रों की एक कक्षा एक परीक्षा में शामिल हुई  12 छात्रों का औसत प्राप्तांक 80 है, और शेष छात्रों का औसत प्राप्तांक

The average age of 39 students of a class is 39 years. If the age of the teacher is also included, the average age of the whole group becomes 40 years. The age (in years) of the teacher is: एक कक्षा के 39 विद्यार्थियों की औसत आयु 39 वर्ष है। यदि शिक्षक की आयु को

In a 100-marks test, the average of marks scored by 50 students was found to be 65. Later on, it was discovered that a score of 88 was misread as 68. Find the correct average. 100 अंकों की एक परीक्षा में 50 विद्यार्थियों  द्वारा प्राप्त अंकों का औसत 65 पाया गया। बाद में यह ज्ञात

The average monthly expenditure of a family was ₹8,600 during the first three months, ₹9,750 during the next four months and ₹9,920 during the last five months of a year. If the total savings during the year was ₹65,300, the average monthly income (in₹) of the family was: एक परिवार का वर्ष के पहले तीन

The average monthly income of A and B is ₹3,590. The average monthly income of B and C is ₹4,250. The average monthly income of A and C is ₹6,500. What is the monthly income of C? A और B की औसत मासिक आय ₹3,590 है।B और C की औसत मासिक आय ₹4,250 है।A और

The average age of 48 students of a class is 22 years. If the age of the teacher is also included, the average age of the whole group becomes 23 years. The age (in years) of the teacher is: एक कक्षा के 48 विद्यार्थियों की औसत आयु 22 वर्ष है। यदि शिक्षक की आयु को