ANSWER KEY X ICSE BATCH III(17/04/10)

ANSWER KEY X ICSE BATCH III(17/04/10)

X ICSE MATHEMATICS (60)

Q.1) A     Rs.6868.80
        B     PROVE
        C     Rs.1,456
Q.2) A     PROVE
        B     Rs.12,500
        C     x = 32/3 or x = 1
Q.3) A    Rs.1,875 ;  Rs.50,700;  Rs.2,028
        B     PROVE
        C     PROVE
Q.5) A     20% ;   Rs.14,400
        B     Rs.784 ; Rs.7,278
        C     Rs.4,800
Q.6) A     Rs.35,370.50
        B     Rs.35
        C     Rs.5,000
Q.7) A     (3±√40)/2 ;
        B     (-5±√40)/5 ; 
        C     x = 1 or x = -2
Q.8) A     PROVE
        B     PROVE
        C     PROVE
Q.9) A     PROVE
        B     PROVE
        C     PROVE