McQ questions please please please ans
Answers
Answer:
6 Ka answer Hoga 90 degree
Answer:
1) √1444 = 38
√3136 = 56
√961 = 31
√2222 = 47.13........
∴answer = (d) 2222
2) Divisibility criteria for 9 is that sum of the digits = 9
thus,
3 + 7 + 4 + y = 9
14 + y = 9
5 + y = 9 (14 is further added to become 1 + 4 = 5)
y = 9 - 5
y = 4
∴answer = (d) 4
3) (0.8)³ = 0.512
∴answer = (c) 0.512
4) 8a²b³ / -2ab (cancel out common factors)
we get -4ab²
∴ answer = (c) -4ab²
5) answer = (d) 20 diagonals
6) dIagonal of a rhombus are perpendicular to each other or bisect and right angles (90°)
∴answer = (a) 90°
7) answer = (b) 4
8) sum of all interior angles in a polygon = (n-2) x 180
where n = number of sides.
a quadrilateral has 4 sides
∴ sum of all interior angles = (4-2) x 180
2 x 180
360°
∴answer = (d) 360°
9) Divisibility criteria for 3 is that sum of all digits should equal 3, 6, or 9.
let x + y = k
since we have to find least number,
7 + 5 + k = 3
12 + k = 3
3 + k = 3 (12 is further added to become 1 + 2 = 3)
k = 0
∴answer =(c) 0
10) answer = (a) 8
Hope it helps you :)