The average age of 25 students and teacher is 15 years. If the age of the teacher is excluded, then the average is decreased by one year. Find the age of the teacher?
A40
B60
C45
D56
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Related Questions:
The average age of 10 students and their class teacher is 17 years. If the age of the class teacher is excluded, the average age of the 10 students is reduced by 2 years. What is the age of the class teacher?
The average of 8 numbers is 100. The difference between the two greatest numbers is 20. Average of the remaining 6 numbers is 85. The greater number is:
17, 16, 13, X, 14 ഇവയുടെ ശരാശരി 15 ആയാൽ x ന്റെ വിലയെന്ത്?
Rohan's average marks in 7 subjects is 76. His average marks in 6 subjects, excluding Mathematics, is 73. How many marks did he score in Mathematics?
ഒരു ക്ലാസ്സിലെ 35 കുട്ടികളുടെ ശരാശരി പ്രായം 15 ആണ്. അവരുടെ അദ്ധ്യാപികയുടെ പ്രായവും കൂടി ചേർന്നാൽ ശരാശരി 16 ആകും. എങ്കിൽ അദ്ധ്യാപികയുടെ പ്രായമെന്ത് ?