Q-(1-5) Find the value of variables and state the correct relationship.
(1) I. 3x - 2y =3
II. x2 + y2 = 130
(1) If x > y
(2) If x < y
(3) If x > y
(4) If x < y
(5) If x = y or relationship cannot be established.
(2) I. 4x2 - 15x + 9 = 0
II. 10y2 - 21y + 9 = 0
(1) If x > y
(2) If x < y
(3) If x > y
(4) If x < y
(5) If x = y or relationship cannot be established.
(3) I. x3 = - 2744
II. y2= 180
(1) If x > y
(2) If x < y
(3) If x > y
(4) If x < y
(5) If x = y or relationship cannot be established.
(4) I. x2 - 6x - 135 = 0
II. y2 - 38y + 345 = 0
(1) If x > y
(2) If x < y
(3) If x > y
(4) If x < y
(5) If x = y or relationship cannot be established.
(5) I. x2 = 800
II. y2 = 600
(1) If x > y
(2) If x < y
(3) If x > y
(4) If x < y
(5) If x = y or relationship cannot be established.
Q-(6-10) What should come at place of question mark (?) in the following questions?
निम्नलिखित प्रश्नों में प्रश्नवाचक चिन्ह (?) के स्थान पर क्या मान आयेगा?
(6) 84% of 740 = ?% of 277.5
(1) 227
(2) 312
(3) 284
(4) 216
(5) None of these
(7) 19.52 + 44.52 = 127.5% of 840 + ?
(1) 1184.25
(2) 1311.5
(3) 1289.5
(4) 1266.5
(5) None of these
(1) 48/8
(2) -48/7
(3) 7/48
(4) -7/48
(5) None of these
(9) 84.24 × 124 + 17.42 = 480% of ?
(1) 2344.125
(2) 2239.275
(3) 2755.5
(4) 3015.875
(5) None of these
(10) 134% of 920 - 210% of 640 = ?2 - 192.2
(1) 7
(2) 11
(3) 5
(4) 9
(5) None of these
Answer Key-
Q-(1) Sol-(2)
x = 7, y = 9
x < y
Q-(2) Sol-(5)
Q-(3) Sol-(2)
x = -14
y = +13.5t, - 13.5t
So x < y
Q-(4) Sol-(4)
x = 15, - 9
y = 15, 23
x < y
Q-(5) Sol-(5)
No relationship can be established
Q-(6) Sol-(5)
Q-(7) Sol-(3)
380.25 + 1980.25 - 1071 = ?
? = 1289.5
Q-(8) Sol-(4)
Q-(9) Sol-(2)
Q-(10) Sol-(4)
123.8 - 1344 = ?2 - 192.2
?2 = - 111.2 + 192.2
?2 = 81
? = 9
