Quiz : Simple Equation

There are 10 questions in this quiz. Answer all the questions and comment how many you got correct with something about yourself.

On adding 9 to the twice of a whole number gives 31. The whole number is

21
16
17
11


The sum of two consecutive odd numbers is 36. The smaller one is

15
17
19
13


A number has two digits whose sum is 6. On adding 18 to the number its digts are interchanged. The number is :

23
24
26
25


Thrice a number when increases by 6 gives 24, the number is :

6
7
8
11


Two complementary angles differ by 10^o. The larger angle is

60^o
50^o
64^o
54^o


Two supplementary angles differ by 20^o. The smaller of the two measures :

60^o
80^o
100^o
120^o


2/3 of a number is less than the original number by 10. The original number is :

30
60
36
45


The age of A and B are in the ratio 5:3. After 6 years, their ages will be in the ratio 7:5. The present age of the A is :

5 years
10 years
15 years
20 years


3x +8/3 = x/4 + 5, then the value of x is :

23/28
28/33
26/33
None of these


Twice a number when decreased by 3 gives 21, the number is :

21
22
12
None of these