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The average age of students of a school is 6 years and the average age of 12 teachers is 40 yers.If the average age of all teachers and students together is 7 years. Then find out the numbers of students in the school ?
Correct Answer Is : 396 In three numbers first number is twice of second and second number is twice of third. If the average of these three number is 105.Then find out the largest of these three numbers. Correct Answer Is : 180 A batsman makes a score of 99runs in the 28th innings and thus increase his average by 2.25 runs. What his average after 28th inning ? Correct Answer Is : 38.25 A batsman make a score of 38 runs in 24 innings and thus decreases his average by 0.75.What is his average after 23 rd innings ? Correct Answer Is : 56 runs The average age of 18 students decreased by 0.5 years when a students of age 22 years , is replaced by anew students .What will be the age of the new students ? Correct Answer Is : 13 years The average monthly salary of 25 employees in a factory is 1200.If the directors salary is added then the average salary increases by 250.What is the director `s monthly salary ? Correct Answer Is : 7700 The sum of four consecutive odd numbers is 138 more than their average. Find the smallest number ? Correct Answer Is : 46 The average of
12, 22, 32, 42, 52, 62, 72, 82, 92, 102 is Correct Answer Is : 38.5 There are three baskets of fruits. First basket has twice the number of fruits in the 2nd basket. Third basket has 3/4 th of the fruits in the first. The average of the fruits in all baskets in 30. What is the number of fruits in the first basket ? Correct Answer Is : 20 Geetha weighs 11.235 kg. Her sister weighs 1.4 times her weight. Find their combined weight? Correct Answer Is : 26.964 kg