[" 35."5(5)/(6)-3(8)/(9)-?=1],[" (a) "(2)/(3)],[" (c) "(17)/(10)]

(8x)/(9)+3=(5x)/(6)+1

(5)/(6) -: (6)/(7) xx ? - (8)/(9) -: 1 (2)/(5) -: (3)/(4) xx 3 (1)/(3) = 2(7)/(9)

(iv) (6-3(1)/(8))/(5+(3)/(4+(5)/(9)))

( (5)/(6)-:(6)/(7)times(6)/(7)-(8)/(9)-:1(3)/(5)+(3)/(4)times3(1)/(3)

(5)/(6)-:(6)/(7)xx?-(8)/(9)-:1(3)/(5)+(3)/(4)xx3(1)/(3)=2(7)/(9)(7)/(6)(b)(6)/(7)(c)1(d) None of these

The expression (5(5)/(8))/(6(3)/(7)) of (6(7)/(11))/(9(1)/(8))-:(8)/(9)(2(3)/(11)+(13)/(22)) of (3)/(5) equals (a) 1 (b) (1)/(2)( c) (7)/(9)( d) (5)/(12)

The centroid of the triangle whose vertices are (3,-7), (-8,6) and (5,10) is (a) (0,9) (b) (0,3) (c) (1,3) (d) (3,5)

(-8)^3xx(-9)^3-:6^5