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 By: sundarshoba (offline)  Saturday, February 11 2012 @ 05:03 AM CST (Read 2252 times)
sundarshoba

Please help to solve Question 11 of Paper2 : Need to find the pattern and fill in the blanks. Please refer back the question. Thanks

Chatty

Registered: 12/31/06
Posts: 53

 By: awyw1201 (offline)  Sunday, February 12 2012 @ 07:08 PM CST
awyw1201

Quote by: sundarshoba

Please help to solve Question 11 of Paper2 : Need to find the pattern and fill in the blanks. Please refer back the question. Thanks

Pls provide the qn

Regular Member

Registered: 07/08/11
Posts: 87

 By: sundarshoba (offline)  Monday, February 13 2012 @ 07:20 AM CST
sundarshoba

Please assist to solve the following questions attached. Thanking you in advance.

Chatty

Registered: 12/31/06
Posts: 53

 By: awyw1201 (offline)  Monday, February 13 2012 @ 08:02 AM CST
awyw1201

Q11

(a) pattern no. X 4 - 3= no. Of patterned circles
Thus, 7 x 4 - 3 = 25

(b) look under the middle column
Pattern 2----(2+0) x(2+0)= 4
Pattern 3----(3+1) x (3+1)= 16
Pattern 4---(4+2) x (4+2)= 36
Thus, (7+5) x (7+5)=144

(c) looking at the rightmost column,
Pattern 1----(1+0) x(1+0)=1
Pattern 2---(2+1) x (2+1)=9
Pattern 3---(3+2) x (3+2)=25
Pattern 4----(4+3) x (4+3)= 49

Thus, (12+11) x (12+11)= 529

Ans: (a) 25. (b) 144 (c) 529

Regular Member

Registered: 07/08/11
Posts: 87

 By: awyw1201 (offline)  Monday, February 13 2012 @ 08:07 AM CST
awyw1201

Q12

The fraction in the third line should be 4/9, not 2/3.

Area of triangle : area of rect----9 : 20
Shaded area : area of triangle---4 : 9

The unshaded parts would be 16u + 5u = 21u----126
1u---6
9u----54

Ans: 54 cm2

Regular Member

Registered: 07/08/11
Posts: 87

 By: sundarshoba (offline)  Monday, February 13 2012 @ 04:51 PM CST
sundarshoba

Thank you very much

Chatty

Registered: 12/31/06
Posts: 53

 By: awyw1201 (offline)  Tuesday, February 14 2012 @ 04:32 AM CST
awyw1201

Quote by: sundarshoba

Thank you very much

You are most welcome:-)

Regular Member

Registered: 07/08/11
Posts: 87

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