Question
Three years from now, the combined age of Aman and Bittu
will be 42 years. Eight years ago, Aman was six years younger than Bittu. What will be Bittu’s age four years from now?Solution
ATQ,
Let the present ages of 'Aman' and 'Bittu' be 'p' and 'q' years respectively.
So, p + 3 + q + 3 = 42
Or, p + q = 36 --------- (I)
And, p - 8 = q - 8 - 6
Or, 'p' = q - 6 ---------- (II)
From equation I and II,
We get, q - 6 + q = 36
Or, 2q = 42
Or, 'q' = 21
Therefore, required age of 'Bittu' = 21 + 4 = 25 years
If 16 15 26 69 260 x,
Find 75% of x+ x
The number of terms in the sequence 5, 20, 80, 320,……………., 5120 is:
800    544    416    352    ?     304
If 2.5 3.5 x 30 124 625
Then, x ² - 1 - 2x = ?
...398Â Â Â 308Â Â Â 228Â Â Â 158Â Â Â 98Â Â Â ?
30    32    67    206    ?     4166
If 152,   242,    x ,  332,   404,    314,
then find the value of (2x – 1)?
...Find the wrong term  in the following series:
4, 14, 45, 142, 427, 1292
351Â Â Â 261Â Â Â 181Â Â Â 111Â Â Â 51Â Â Â ?
What should come in place of the question mark (?) in the following number series?   Â
20Â Â Â 21Â Â Â Â 33Â Â Â Â Â ...