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7 ⇒ 7 × 7 = 49 – 1 = 48 Similarly, 12 ⇒ 12 × 12 = 144 – 1 = 143 Hence, option A is correct.
The average of four consecutive odd numbers is 47. What is the largest of these numbers?
A cricketer scored 240 runs in his first six matches of a tournament. Find the average runs the cricketer must score in the next four matches so that hi...
In an examination the average marks of Rohit is 60. If he got 19 more marks in science and 26 more marks in maths then his average would have been 65. F...
The average of 18 numbers is 36. If 4 is added to each number, then the new average will be:
Average 20 numbers is ‘x’. If the average of first 12 numbers is 64.5 while average of last 5 numbers is 84.8 and 13th, 14th...
Determine the number of Girls in a school of 60 Student when you know that the average weight of all Student is 50 kgs, the average weight of boys...
Rajat aims to save an average of Rs. 750 per month over the course of a year. For the first 8 months, his monthly income was Rs. 3,000, and he spent 80%...
The average expenditure of a man for the first 8 month is Rs.4000 and for the next 4 months is Rs.6000. If he saves 10000 in that year then find his ave...
The average age of a group of 50 students is 16 years. If 3 students whose ages are 18 years, 26 years, and _____ years are replaced by 3 new students w...
The average cost of three chairs is Rs.12000. The average cost decrease by 18% when one more chair is included. What is the cost price of the 4th
