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Subject :NSO    Class : Class 6

The big rectangle is divided into four parts. P is a square. The area of Q is thrice that of P. The area of R is 42 cm2 more than the area of Q. What is the perimeter of the big rectangle?

(A) 90 cm

(B) 76 cm

(C) 80 cm

(D) 88 cm

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