In order to obtain an accurate estimate, an operation has been observed five times and the measurements are as follows: $0\mathrm{.}055,0\mathrm{.}050,0\mathrm{.}065,0\mathrm{.}060,0\mathrm{.}060($in minutes$).$ The operator has been rated at $115\%.$ Assuming $12\%$ for allowances, the standard time is: