675 ÷ 15 + 225 – 18 × 6 = ?
675 ÷ 15 + 225 – 18 × 6 = ? => 45 + 225 – 108 = ? => ? = 162
The average age of A and B is 16 years. If A is to be replaced by C, the average would be 15 years. The average age of C and A is 17 years. Find the age...
The average of n numbers is 62. If each of 55% of the numbers is increased by 18 and each of the remaining numbers is decreased by 12, then the n...
There are 15 numbers such that average of first 12 numbers is 50 while the average of last five numbers is 60. Find the 12th number, if the ratio betwee...
Average age of a class of 25 students is 13 years. Average age of the class is increased by 30 months if the age of the teacher is included. Find the ag...
Average marks scored by Vineet in five subjects are 80. The average marks scored by him (excluding his highest and lowest marks) are 72 and lowest marks...
The cost of packaging of the oranges is 15% the cost of fresh oranges themselves. The cost of oranges increased by 35% but the cost of packaging decreas...
The average of 19 numbers is 15.The average of first 9 numbers are12 and that of the last 9 numbers are15. What will be the 19th number?
The average expenditure of a man for the first seven month is Rs.12000 and for the next five months is Rs.9000. If he saves 15000 in that year then find...
Average 20 numbers is ‘x’. If the average of first 12 numbers is 62.5 while average of last 5 numbers is 74.8 and 13th, 14th a...
The mean of a set of 8 numbers is 80. If the average of the first four numbers and the last two numbers is 90 and 60, respectively, and the ratio of the...