The average age of a class of 22 students is 21 years. The average age increase by 1 year when the teacher’s age is also included . What is the age of the teacher? November 17, 2019 by mcq a) 48 years b) 45 years c) 43 years d) 44years View AnswerOption – d. More QuestionsIf the sides of a triangle are 26 cm, 24 cm and 10 cm, what is its area ?A man has some hens and cows. If the number of their heads be 48 and the number of feet equal to 140, then the number of hens isWhich of the following books was written by GandhijiHow many hearts does an octopus have?What is the correct way of describing XML data?In an election between two candidates, one got 55% of the total valid votes, 20% of the votes were invalid. If the total number of votes was 7500, the number of valid votes that the other candidate got, was :What is the total population of India in crores according to 2001 CensusA column defined as UNIQUE can contain Nulls while a column defined as PRIMARY KEY can’t contain NullsA sum is equally invested in two different schemes on CI at the rate of 15% and 20% for two years. If interest gained from the sum invested at 20% is Rs. 528.75 more than the sum invested at 15%, find the total sum?Which of the following are valied?