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Average age of 12 men is (i) increased (ii) decreased by th years, when one of them whose age is 40 years is
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replaced by a new man. What is the age of the new man?
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suppose you could not go to school last week because you had an attack of viral leaver write a letter to the headmaster/ headmistress of your school requesting him/had for granting you sick leave for a week.
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