I tried solving these sums by taking numbers but I felt the process is too time consuming
I am not able to select smart nos in these scenarios
I also have similar doubt. Choosing numbers in these questions take too much time, with an additional risk that I might have missed any corner case. How to solve this in a more deterministic behaviour?
Same here. I am waiting for a reply regarding this
Could someone pls help me out regarding this
You can solve them a bit, but quickest way will be choosing numbers,
For example :
17,
|x| < 1 which means x<1 and x>-1
y> 0
lets take y =1 and x= 0
|x|+y = 1; xy = 0
lets take x = 0.1, y =1
1.1 ; 0.1
lets take x = -0.1, y=1
0.9 ; -0.1
So, Answer is A
In case of questions like 19, you have quantity B = -9; so you can put value of x = -9 or x<- 9 or x>-9 to find the answer more quickly.
Also, if you use logic - you can find answer more quickly
example
17,
As you can see modulus of x which is |x| will be positive number so |x| + y will result in positive number. On the other side , xy is without modulus which will make the product negative and hence answer is Option A
For the 3rd case u took x = -0
but 0 is not negative right
sorry, it was a typo
I fixed it
Np