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The average of A and B is 20 years. If C were to replace A, the average would be 19 and if C were to replace B, the Average would be 21. What are the ages of A, B and C ? A. 18 years, 16 years, 20 years B. 22 years, 18 years, 20 years C. 21 years, 18 years, 12 years D. 13 years, 17 years, 24 years
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The average age of 4 member of a family is 25 yr. If head of the family is included in this group then average age increase by 20%. Find out the age of the head.
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Average age of 5 boys is 16 yr,of which that of 4 boys is 16 yr, 3 months. The age of the 5th boys. A. 2years B. 11years C. 9years D. 15years
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The average of four consecutive numbers A, B, C, and D is 49.5. What is the product of B and D ? A. 2299 B. 2399 C. 2499 D. 2599
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A sum was invested at simple interest at a certain interest for 2 years. It would have fetched Rs. 60 more had it been invested at 2% higher rate. What was the sum? A. Rs. 1500 B. Rs. 2500 C. Rs. 1300 D. Rs. 1000
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The average of 8 numbers is 14. The average of 6 of these numbers is 16. What is the average of the remaining two numbers? A. 8 B. 2 C. 6 D. 9
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5 years ago, the average of Ram and Shyam age was 20 years. now, the average age of Ram , Shyam and Mohan is 30 years . what will be Mohan’s age 10 years hence? A. 35 years B. 40years C. 45years D. 50years
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A businessman purchased 30 TV sets in Rs. 300000, If the average cost of 15 TV sets is Rs. 9000 then find out the average cost of remaining TV sets. A. Rs. 5500 B. Rs. 7000 C. Rs. 9000 D. Rs. 11000
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The mean temperature of Monday to Wednesday was 37° C and of Tuesday to Thursday was 34° C . If in the temperature on Thursday was 4/5th that of Monday, what was temperature on Thursday ? A. 32° C B. 34° C C. 36° C D. 38° C
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The mean marks obtained by seven students group is 226. If the marks obtained by six of them are 340, 180, 260, 56, 275 and 307 respectively. Find the markes obtained by the seventh student. A. 142 B. 164 C. 178 D. 191
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A man whose bowling average is 12.4 takes 5 wicket for 26 runs and thereby decreases his average by 0.4. The number of wickets taken by him, before his last match is ? A. 85 B. 76 C. 56 D. 34
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The average of 5 consecutive number is n , if the next two number are also include, the average of 7 number will ? A. Increase by 9 B. Increase by 7 C. Increase by 4 D. Increase by 1
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The average of 25 results is 18, that of first twelve is 14 and of last twelve is 17 . Thirteenth result is A. 75 B. 78 C. 79 D. 82
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. If A = x% of y and B = y% of x, then which of the following is true?
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What percentage of numbers from 1 to 70 have 1 or 9 in the unit’s digit? A. 1 B. 14 C. 20 D. 21
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A fruit seller had some apples. He sells 40% apples and still has 420 apples. Originally, he had:
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