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A train travel from Varanasi to Allahabad at the speed of 38 km/hr and from Allahabad to Varanasi at the speed of 42 km/hr. Find the average speed of the whole journey.
Find the average of all odd numbers up to 160.
Find the average of squares of first eight natural numbers.
Find the average of 15 multiple of a number 3
Find the average of 1 to 57
The average of the marks obtained in a subject by 10 students was 60 and by 15 other students was 65. The average marks of all students were:
In a group of some people , the average height was 158.4. When five new people with height 158.8 cm, 164.4 cm, 160.4 cm, 161.2 cm and 165 cm respectively were added to the group, the new average height of the group was increased by 6 mm. Find the number of people in the beginning?
The average weight of a group of students is 60 kg. 5 new students with an average weight of 40 years join the group, thereby decreasing the average by 5 kg. The original strength of the group was:
Two groups of teachers, whose average ages are 30 years and 50 years, combine to form a third group whose average age is 44 years. What is the ratio of the number of teachers in the first group to that of in the second group?
The average income of Arpit for the first 6 days is Rs. 580, for the next 6 days it is Rs. 480, for the next 10 days it is Rs. 640 and for the remaining days of the month, it is Rs. 600. Find the average income per day (Assume month is of 30 days).
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Oct 13CTET & State TET Exams