Question
Calculate Tina's age five years ago given that the
current average age of Tina, Rohan, and Ramu is 25 years, while the average age of Rohan and Ramu alone is 27 years.Solution
Sum of present ages of Tina, Rohan and Ramu = 25 X 3 = 75 years Sum of present ages of Rohan and Ramu = 27 X 2 = 54 years So, present age of Tina = 75 - 54 = 21 years Now, Age of Tina 5 years ago from now = 21 - 5 = 16 years
79, 248, ?,Β 225, 125, 206
840, 2520, 630, 3150, ?,Β 3675
7, 8, ?, 52, 209, 1046
70, 95, 145, ?, 320, 445
123, 122, 114, 87, ?, -102
24 36 72 108 216 ?
- What will come in place of the question mark (?) in the following series?
24, 35, 57, 90, 134, ? What value should come in the place of (?) in the following number series?
24, 45, 133, 531, 2655, ?
What value should come in the place of (?) in the following number series?
1.5, 2.5, 4, 6, ?, 11.5
1024, 256, 768, 192, 576, 144, ?