The average of 25, 46 and ‘y’ is 11. What is the value of ‘y’?
-38
We know the formula for the average of numbers is: \[ \frac{25 + 46 + y}{3} = 11 \] Simplifying the equation: \[ 71 + y = 33 \quad \Rightarrow \quad y = 33 - 71 \quad \Rightarrow \quad y = -38 \]
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Important Questions from Average
The average height of 20 students of class 8 is 152 cm and the average height of 15 students of class 9 is 168 cm. What is the average height (to the nearest cm) of the students of both classes?
The average of 4, 6, 8, 12 and x is 7 and the average of x, 9, 13, 15 and y is 9. What is the value of 2x - 3y?
The average weight of 20 girls in a school was 52 kg. Two new students of weight 54 kg and 50 kg were admitted. The ratio of this new average to the old one is:
If the average of two numbers is 13 and the square root of their product is 12, then the difference between the numbers is:
If the average of 5 consecutive odd integers in increasing order is 11 , then the average of the last 3 of them is:
