Question
Determine the highest possible value of (x + y) if the
number '3x725y4' is divisible by 12.Solution
ATQ,
A number is divisible by 12 if it’s divisible by both 3 and 4.
Check last two digits ‘y4’.
‘y4’ divisible by 4 → y = 0, 2, 4, 6, 8
Maximum y = 8
Now check sum of digits:
3 + x + 7 + 2 + 5 + 8 + 4 = 29 + x
29 + x must be divisible by 3 → x = 1, 4, 7
Maximum x = 7
So, max (x + y) = 7 + 8 = 15
32, 52, 82, 124, 180, ?
9 10 36 333 ? 132825
...A series given below has a missing term (Z), find the value of Z.
3, 10, 36, (Z), 770, 4632
If Z is the first term of another sequence and...
33, ?, 66, 82.5, 99, 115.5
What value should come in the place of (?) in the following number series?
15, 16, 24, 51, 115, ?
81, 83, 87, 95, 111, ?
226, 171, 124, 85, 54, ?
155, 157, 160, ?, 172, 183
Find the missing number in the given number series.
8, 9, 16, 11, 32, 13, ?12, 11, 20, 57, 224, 1015
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