The average of five numbers is 7. If three new numbers would be added, then the new average comes out to be 8.5. What is the average of those three new numbers ?
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Find the average of 1.11, 0.01, 0.101, 0.001, 0.11 = ?
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The average age of a family with 5 members is 28. If one of the 5 members of age 20 is excluded the average age of the family becomes -
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3
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The average of 20 students is 12 years, if the teacher's age is included, average increases by one. The age of the teacher is:
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4
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If 25a + 25b = 115, what is the average of a and b?
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5
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The average of the largest and smallest 3 digits numbers formed by 0, 2 and 4 would be :
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6
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If the arithmetic mean of 7, 5, 13, x and 9 is 10, then the value of x is :
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7
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A cricketer has a certain average for 9 innings, In the tenth inning he scores 100 runs there by increasing his average by 8 runs. His new average is
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8
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The average monthly income of P and Q is Rs. 6000; that of Q and R is Rs. 5250; and that P and R is Rs. 5500. What is P’s monthly income?
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9
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Out of four numbers the average of the first three is 16 and that of the last three is 15. If the last number is 20, than first number is :
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10
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Distance between two stations A and B is 778km. A train covers the journey from A to B at 84 km per hour and returns back to A with a uniform speed of 56 km per hour. Find the average speed of train during the whole journey.
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