1:
If
5 – 4 = 23
8 – 1 = 63
6 – 16 = 32
9 – 9 = 78
3 – 9 = 6
3 – 81 = ?
Ans:
ZERO
Sol:
Square of the first number minus the square root of the second number.
2:
Which date, month and year in DD/MM/YY format can be expressed as a sum of two squares ?
Hint:
Use the first four natural numbers.
Ans:
5
th
Oct, 17
Sol:
5
th
Oct, 17
05/10/17
(4 + 1)/(9 + 1)/(16 + 1)
(2
2
+ 1
2
)/(3
2
+ 1
2
)/(4
2
+ 1
2
)