Question
Four years ago, the total age of Riya and Samarth was 56
years. At present, the ratio of their ages is 3:5. What will be Samarth’s age six years from now?Solution
ATQ,
Sum of present ages of 'Riya' and 'Samarth' = 56 + 4 + 4 = 64 years
Present age of 'Samarth' = (5/8) × 64 = 40 years
Therefore, age of 'Samarth' 6 years hence from now = 40 + 6 = 46 years
12, 24, 72, 288, 1440, ?
120     119     ?     352      2464     2455
...12 3 15 ? 153 756
...70    191    47    216    ?    245
105   107   111   114   ?   127
19.11 × 5.98 + 20.03 × 3.12 – 34.95 + 97.9 × 3.02 =?
75    196    52    221    ?    250
5Â Â Â Â Â Â Â Â Â 18Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 44Â Â Â Â Â Â Â Â Â Â Â 83Â Â Â Â Â Â Â Â Â 135Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 200Â Â Â Â ...
3, 4, 10, 33, 136, ?, 4116
If 2.5 3.5 x 30 124 625
Then, x ² - 1 - 2x = ?
...
