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MATHEMATICS

JAMB 2012 - Question 2

Mathematics 2012 JAMB Past Questions - Question 2: A rectangular picture 6cm by 8cm is enclosed by a frame 1/2cm wide. Calculate the area of the frame

A rectangular picture 6cm by 8cm is enclosed by a frame 1/2cm wide. Calculate the area of the frame

A: 15sq.cm

B: 20sq.cm

C: 13sq.cm

D: 16sq.cm

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Correct Answer

Explanation

Area of the rectangular picture = L x B = 8 x 6= 48 sq.cm.Area of the whole surface (which is gotten by adding 1/2 on every side to the original picture size) is 9 x 7 = 63 sq. cmarea of the frame is 63 - 48= 15 sq. cm