Question
The current ages of Shivani and Shilpa are in the ratio
7:5. Shipra's present age is 20% more than what Shilpa's age was five years ago. If the average of the current ages of Shivani, Shilpa, and Shipra is 2 years greater than Shilpa's current age, determine Shivani's present age.Solution
Let the present ages of Shivani and Shilpa be 7x years and 5x years, respectively. Present age of Shipra = (5x – 5) × 1.20 = 6x – 6 years So according to question: 7x + 5x + 6x – 6 = 3 × (5x + 2) 18x – 6 = 15x + 6 3x = 12, x = 4 So the present age of Shivani = 7 × 4 = 28 years
20 25 54 165 662 ?
...21Â Â Â Â Â Â Â Â Â Â 48Â Â Â Â Â Â Â Â Â Â 173Â Â Â Â Â Â Â Â 516Â Â Â Â Â Â Â Â 1245Â Â Â Â Â Â 2576Â Â Â Â Â Â ?
...Three series are provided below. You need to determine the values of A, B, and C and subsequently establish a relationship among them.
I: 4, 10...
1Â Â Â Â 1Â Â Â Â 8Â Â Â Â 4Â Â Â Â 27Â Â Â Â 9Â Â Â Â ?
...5Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 6.5 Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 20 Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 113.5 Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 799 Â ...
21 23 26 ? 39 51
...If 6 4 x 5.75 9,
Then, (x²-1) = ?
...4                14                  130                     512                �...
73920, 9240, ?, 220, 44, 11
3, 7, 16, 35, ?, 153
