Classwork – 2 – 10 – 2012, Tuesday

2 Oct

Mathematics :

Page 11 :

Q . 37 :  2.6 – 1.4  ÷ 0.7 :-

A.  1.4 ÷ 0.7  = 2

=  2.6 – 2 = 0.6

Q. 41 :  3.2  ( 0.6 – 0.09 ) + 10.25  :-

A.  3.2  ( 0.51 ) + 10.25

=  3.2 × 0.51  + 10.25

=  1.632  +  10.25

= 11.882

Q. 43 :  ( 20 × 0.06 )  ÷ ( 3.1  –  1.9 )  :-

A.  =  1.2  ÷  1.2

=  1

Q. 47 :  ( 1.2  ×  0.05 )  ÷  (  0.07  +  0.08 )  :-

A.  =  0.06  ÷  0.15

=  0.4 

Q. 46 :  ( 0.04 × 1.02 )  ÷  ( 3.4  ×  0.06 )  :-

A.  =  0.0408  ÷  0.204

=  0.2

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