Question

3. Which of the smallest number, amongst the following can be added to llll to get
a four-digit even perfect square number?
(1) - 22
(2) - 87 (3) - 111 (4) - 150
4. How many four-digit perfect square numbers have 4, 5 or 6 in their units place? Og
(1) 42 (2) 14 (3) 21 (4) 35.
(Hint : (32)2 = 1024 and (99)2 = 9801... the perfect square numbers are from
32 to 99. Units place digit should be 4, 5 or 6... the units place digits of the
two-digit numbers should be 2, 4, 5, 6 or 8. So, numbers are 32, 34, 35, 36, 38,
96, 98. i.e. 5 x 7 = 35.]
5. What will be the result if 625 is subtracted from
(1) 9 (2) 1 (3) 8 (4) 4
1296?
6. If 2x2 =
1024, then x= ?
(1) 16
(2) 32
(3) 8 (4) 4​

Answer 1

Answer:

0 is a smallest number

because in the one to ten digits this zero is the smallest number

Answer 2

Answer:

It's very much harder than it looks