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SSC Sample Paper SSC CHSL (10+2) Sample Test Paper-14

  • question_answer
    What is the least number of square tiles required to pave the floor of a room 9 m 99 cm long and 4m 7 cm broad?

    A)  247                             

    B)  277

    C)  297   

    D)  307

    Correct Answer: C

    Solution :

     Side of the square tiles = HCF of (9m 99 cm and 4m 7cm) = HCF of (999 cm and 407 cm) = 37 Least no. of tiles \[=\frac{Area\,of\,Room}{Area\,of\,1\,tile}\] \[=\frac{999\times 407}{37\times 37}=\]                        


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