Question
A series is given with one term missing. Choose the
correct alternatives from the given ones that will complete the series. 21, 46, 82, 131, 195, ____Solution
The logic followed here is: 21 + 5² = 21 + 25 = 46 46 + 6² = 46 + 36 = 82 82 + 7² = 82 + 49 = 131 131 + 8² = 131 + 64 = 195 195 + 9² = 195 + 81 = 276
The average age of a class of 20 girls is 14 years. If 5 new girls having average age of 9 years join the class, then the average age of the class becomes:
- The average of three numbers is 60. When three more numbers are included, the average increases by 6. Find the average of the numbers included.
A is 75% more than B. C is 60 less than A. Average of A, B and C is 340. The ratio of B and C is 2:x. Find the value of x.
60% of 3840 +? + 30% of 4380 = 40% of 8340 + 10% of 3480
The average weight of 4 persons is 50 kg. The heaviest person’s weight is 20 kg more than the lightest person’s weight. If the average weight of the...
The average salary of an employee increased by Rs.2000 when he received a bonus of Rs.58000 in his 35th year of service. Find the average salary of the ...
The average of two numbers ‘P’ and ‘Q’ is 480 such that they are in the ratio 5:7 respectively. Another number ‘R’ is 60 more than ‘Q’ a...
- The average of 36 numbers is 75. If every number is multiplied by 9, what will be the average of the resulting numbers?
Find the average of prime numbers between 20 and 40.
- Average score of 60 contestants is 185. Two late entries with scores (k + 18) and (k - 12) join, and the average becomes 186. Find (k - 95).
