data sufficiency problem

[Sulbha]

Q) find a>7.5 or not
(i) a>7.4
(ii) a>7.6

a) 1 b)2 c)3 d)4

1-> option (i) is sufficient to find the sol.
2-> option (ii) is sufficient to find the sol.
3-> two are necessary
4-> two are not enough

[Sulbha]

Q) pq is parallel to RS. if angle PPQ =30 deg. then find angle PRS

[nairpraveenk]

Originally Posted by Sulbha

Q) find a>7.5 or not
(i) a>7.4
(ii) a>7.6

a) 1 b)2 c)3 d)4

1-> option (i) is sufficient to find the sol.
2-> option (ii) is sufficient to find the sol.
3-> two are necessary
4-> two are not enough

Ans is C) 3.
both are necessary.

[Sulbha]

1-> option (i) is sufficient to find the sol.
2-> option (ii) is sufficient to find the sol.
3-> two are necessary
4-> two are not enough
Expression: L > M

Statement 1: L2 = 81
Statement 2: M3=1331
a)1 b) 2 c)3 d)4

[Sulbha]

1-> option (i) is sufficient to find the sol.
2-> option (ii) is sufficient to find the sol.
3-> two are necessary
4-> two are not enough
what is the value of the ratio(p+r):r?
1.p:q=1:5 2. q:r=3:2
a)1 b) 2 c)3 d)4

[Sulbha]

Originally Posted by Sulbha

1-> option (i) is sufficient to find the sol.
2-> option (ii) is sufficient to find the sol.
3-> two are necessary
4-> two are not enough
what is the value of the ratio(p+r):r?
1.p:q=1:5 2. q:r=3:2

1-> option (i) is sufficient to find the sol.
2-> option (ii) is sufficient to find the sol.
3-> two are necessary
4-> two are not enough
if L and M are real ,is (L+M) even?
1. L and M are positive. 2. L+M are negative. a)1 b) 2 c)3 d)4

[nairpraveenk]

Sulbha hold on.....
Post the answers as well

[nairpraveenk]

Originally Posted by Sulbha

1-> option (i) is sufficient to find the sol.
2-> option (ii) is sufficient to find the sol.
3-> two are necessary
4-> two are not enough
Expression: L > M

Statement 1: L2 = 81
Statement 2: M3=1331
a)1 b) 2 c)3 d)4

Beliving L2 is L^2 = L square :mg;
L^2 = 81
L = +/- 9
M^3 = 1331
M = 11
So we can say
L < M ( -9< 11 || 9 < 11)
Both are required to Ans this.

[Sulbha]

Originally Posted by Sulbha

Q) pq is parallel to RS. if angle PPQ =30 deg. then find angle PRS

1-> option (i) is sufficient to find the sol.
2-> option (ii) is sufficient to find the sol.
3-> two are necessary
4-> two are not enough
if a is not equal to zero, is (a+b)=0?
1. a is reciprocal of b.
2. a is not equal to -5.
a)1 b) 2 c)3 d)4

[nairpraveenk]

Originally Posted by Sulbha

1-> option (i) is sufficient to find the sol.
2-> option (ii) is sufficient to find the sol.
3-> two are necessary
4-> two are not enough
what is the value of the ratio(p+r):r?
1.p:q=1:5 2. q:r=3:2
a)1 b) 2 c)3 d)4

p:q = 1:5 => p:q = 3:15
q:r = 3:2 => q:r = 15:10
therefore p:r = 3:10
(p+r):r => 13:10

3) Both are required