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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

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