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7.b<br />
SP = Rs.1375<br />
NB: Give relevant marks for other correct method<br />
( )<br />
( )<br />
SRE-109<br />
1<br />
P = 26000<br />
8.a Area of parallelogram =<br />
Area of<br />
ABCD<br />
1<br />
1<br />
1<br />
8.b 1<br />
1<br />
9.a<br />
1<br />
1<br />
9.b<br />
1<br />
Let A and S be the sets of children who like mango and orange<br />
respectively:<br />
1<br />
1<br />
1+1=2<br />
̅̅̅̅̅̅̅̅<br />
= 45<br />
Now, we have<br />
̅̅̅̅̅̅̅̅̅<br />
1<br />
1<br />
3