alleryदोन कामगारांक 3:2 ह्या प्रमाणांत कार्यक्षमताय आसा. पयल्याक फकत 20 दीस जाय. दुसर् याक फकत गरज आसा
A25 दीस
B28 दीस
C40 दीस
D30 दीस
Answer & Solution
Correct answer: D. 30 दीस
वेळ कार्यक्षमतेक उलट प्रमाणांत आसता, देखून 20 x 3/2 = 30 दीस.
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