Question

Please Help me friends.
2.Which of the following has unit digit 1
a.19sq
b.17sq
c.18sq
d.16sq
3.If LCM (X,Y) =xy,then HCF of(X,Y) is
a.x
b.xy
c.1
d.y
4.which of the following is a rational no.
a.√22/7
b.543.1234
c.√2/√3
d.√10
5.In ∆ABC <A= 90° ,AB= 3cm ,BC =5cm and AD perpendicular to BC then length of AD will be
a.12/5
b.5/2
c.5/12
d.√19/2
6.Distance of the points P(-6,-8) from origin is
a.-10
b.10
c.14
d.2
7.Kx^ -2Kx + 3 ,sum of zeroes of the quadratic polynomial is
a.0
b.2
c.-2
d.1
8.2x+3y=5 ,4x+Ky=10 ,have infinite no of solutions when K=?
a.K=1
b.K=0
c.K=6
d.K=-6
9.The volume of a hemisphere of r=2r is
a.4/3π r cube
b.3πr sq
c.8/3 π r cube
d.16/3π r cube
10.one card is drawn from a well shuffled deck of 52cards ,P (E)
that the card will be an ace
a.1/52
b.1/4
c.1/13
d.3/26
​

Answer 1

Answer:

1. b
2. a
3. d
4. b
5. a
6. a
7. d
8. b
9. a
10. c.

hope it's helpful to you

Answer 2

Answer:

1. 5

2. a. 19²

3. c. 1

4. b. 543.1234

5. p (greater than ) 0

6. c. 16

hope it helps u