Question

9. What is the greatest possible speed at which a girl can walk 95 m and 171 m in an exact number of minutes ? (a) 17 m/min 10 a a (b) 19 m/min (c) 23 m/min (d) (d) 13 m/minl​

Answer 1

Answer:

Hey mate

Here your answer

19m/minutes

L.C.M of 95= 5 x 19

L. C. M of 171 = 3 x 3 x 19

H.C.F. Is the =19

So the ans is 19

19m/minutes is the correct answer

Answer 2

Answer: Option (B) is correct.

Step-by-step explanation: As the girl needs to walk 95 m and 171 m at the exact number of minutes.
so, we have to find HCF OF 95 and 171.
According to prime factorization of 95 and 171
                              95 = 5 x 19
                             171 = 3 x 3 x 19
            HCF(95, 171) = 19
Hence, the greatest possible speed is 19 m/min.