If x is a positive integer and 20x<then find solution set of x.
a) {0,1,2,3,4,5}
b) {1,2,3,4,5}
c) {1,2,3,4}
d) {0,1,2,3,4}
Q.6.
If x is a natural number and 20x≤then find solution set of x.
a) {0,1,2,3,4,5}
b) {1,2,3,4,5}
c) {1,2,3,4}
d) {0,1,2,3,4}
Q.7.
If x is a whole number and 10x≤then find solution set of x.
a) {0,1,2,3,4,5}
b) {1,2,3,4,5}
c) {1,2,3,4}
d) {0,1,2,3,4}
Q.8.
If 2x+1 > 5 then which is true?
a) x>4
b) x<4
c) x>2
d) x<2
Q.9.
If x-1>-x+7 then which is true?
a) x>4
b) x<4
c) x>2
d) x<2
Q.10.
Rahul obtainedandmarks in first two tests. Find the minimum marks he should get in the third test to have an average of at leastmarks.
a) 60
b) 35
c) 180
d) 45
Q.11.
Find all pairs of consecutive odd positive integers both of which are smaller than 8 such that their sum is more than 10.
a) (5,7)
b) (3,5), (5,7)
c) (3,5), (5,7), (7,9)
d) (5,7), (7,9)
Q.12.
The longest side of a triangle is 2 times the shortest side and the third side is 4 cm shorter than the longest side. If the perimeter of the triangle is at leastcm, find the minimum length of the shortest side.
a) 7
b) 9
c) 11
d) 13
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