1. If one of the zeroes of the quadratic polynomial x2+3x+k is 2, then the value of k is
a) 10
b) -10
c) -7
d) -2
2. The total number of factors of a prime number is
a) 1
b) 0
c) 2
d) 3
3. The quadratic polynomial, the sum of whose zeroes is -5 and their product is 6, is
a) x2+5x+6
b) x2-5x+6
c) x2-5x-6
d) -x2+5x+6
4. The value of k for which the system of linear equations x+y-4=0 and 2x+ky=3, has no solution, is
a) -2
b) ≠2
c) 3
d) 2
5. The HCF and LCM of 12, 21 and 15 respectively are
a) 3, 140
b) 12, 420
c) 3, 420
d) 420, 3