Question

1) Multiplicative inverse of 15/16 is _
a) 1
b) 0
c) -15/16
d) 16/15
2) If the product of two numbers is 64 and their HCF is 4, then the LCM is _
a) 2
b) 16
c) 8
d) 12
3) If 15=×(mod2), then value of x is _
a) 0
b) 1
c) 2
d) -5
4) The unit digit in 6^100 is _
a) 0
b) 4
c) 6
d) 5
5) If (n+1)!=60n!, then n= _
a) 56
b) 59
c) 58
d) 60
6) Which of the following rational numbers that are equal to their reciprocals ?
a) 0
b) 2,-2
c) 1,-2
d) 1,-1
7) The LCM of 576 and 450 is _
a) 2^6×3×5
b) 2^6×3×5^2
c) 2^6×3^2×5
d) 2^6×3^2×5^2
8) LCM of the fractions 10/3,20/9,5/15 is _
a) 40/3
b) 40/9
c) 40/15
d) 20/3
9) The unit's place digit in 3^4n+3 is _
a) 3
b) 9
c) 7
d) 1
10) 5×6×7×8×9=
a) 9!/4!
b) 10!/5!
c) 8!/3!
d) 9!/5!
11) Terminating decimal from the following is _
a) 4/3
b) 15/7
c) 7/15
d) 4/5
12) The greatest number which divides 10 and 30 is _
a) 2
b) 5
c) 10
d) 30
13) Rhe GCD of 72,90,99 is _
a) 18
b) 9
c) 36
d) 48
14) the equivalent rational number of -5/7 is _
a)20/28
b)-25/27
c)-25/35
d)27/37
15) The rational number between 2/3 and 3/4, which is equidistant from them is _
a)21/16
b)17/24
c)24/17
d)15/7
Please choose the correct option and do it as soon as possible.​

Answer 1

Answer:

1) a

2) d

3) a

4) c

5) b

6) a

7) b

8) b

9) c

10) d

11) c

12) a

13) d

14) c

15) d