सम मोरे मथिस ,,, फ्रॉम १८ तो २०

1. A triangle is given with sides x, y & z. If z = 1/4(perimeter) & x + y = 12 then find perimeter?

2. If (n-2)(n-3) = 0, then
Col A: -2n-1
Col B: 2n+1

3. 1^-3 + 2^-2 + 3^-1 =?

4. (1+squareroot2)(1-sqaureroot5) (1-squareroot2) )(1+sqaureroot5) = ?

5. If y = -(x-1) then find the value of 1/3|y+x|?

6. If ‘X’ invests Rs.5000 at the rate of 6% for annual and ‘Y’ invests Rs.6000 at the rate 6% for semiannual, then
Col A: The interest ‘X’ gets for 1year
Col B: The interest ‘Y’ gets for 1year

7. Given a triangle with sides 10, 10 and the area of the triangle is given as 32. Find the perimeter of the triangle?

8. Given that ‘r’ is a three digit number such that it contains ‘x’ in its hundredth place, ‘y’ in tens place, ‘z’ in units place. If’ x’ is multiplied by 9, ‘y’ is multiplied by 6 and ‘z’ is multiplied by 2 then what is the value of the N735 (here 735 is given as suffix, & Question mean that r=735)
A. 72
B. 79
C. 86
D. 91
E. & so on…
Ans: D

9. If x < 0 then
Col A: -x
Col B: lxl

10. If the point (2,3) lies on the line mx + ky = 1
Col A: k
Col B: 0