Question

mark against the correct answer in each of the following with solution
9. 6-% expressed as a fraction is
(b)
10. If x% of 75 = 12, then the value of x is
(a) 8
(b) 10
(c) 12
(d) 16
11. A number increased by 20% gives 30. The number is
(a) 150
(b) 6
(c) 25
(d) 60
12. 5% of a number is 9. The number is
(a) 120
(b) 140
(c) 160
(d) 180
13. If 35% of a number added to 39 is the number itself, the number is
(a) 60
(b) 65
(c) 75
(d) 70
14. In an examination it is required to get 36% to pass. A student gets 160 marl
by 20 marks. The maximum marks are
(a) 400
(b) 450
(c) 500
(d) 600
please do any one or all☺​

Answer 1

I can't solve all but answer of question 12is (d)180. If anyone else knows another answer the person will definitely help it's my wish .I am too weak in maths