A long thin strip of width 7cm is kept on a flat surface. Another identical strip is kept on it in an overlapping manner such that the combined width of the two is 11 cm. What is the width of 55 such strips kept like this ?



A long thin strip of width 7cm is kept on a flat surface. Another identical strip is kept on it in an overlapping manner such that the combined width of the two is 11 cm. What is the width of 55 such strips kept like this ?

11cm is combined width for 2 strips ,

    11-7= 4cm is extra width for each overlapped strip.
    Hence 4*53 = 212 (Remaining 53 strips)
    212 + 11 = 223 (Previous 2 strips)


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