Tech Mahindra Company Numerical Ability Time Distance and Speed

A man has to cover total distance of 24 kms in 3 hours. He has to use two modes of transportation Bus & Bullock-cart. The Bus & Bullock-cart can cover 20 kms & 2 kms respectively in 1 hour. In what proportion man should use these transportation modes so as to reach on time? (Assume that Bus in costlier than bullock-cart so man wants to use minimum Bus journey).

a) 05:30
b) 05:30
c) 05:30
d) 05:30
e) 05:30

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Tech Mahindra Other Question
If 10 litres of an oil of Rs.50 per litres be mixed with 5 litres of another oil of Rs.66 per litre then what is the rate of mixed oil per litre?

a) Rs.49.17
b) Rs.51.03
c) Rs.54.17
d) Rs.55.33
e) None of the above A seller mixed 4 dozen bananas costing Rs.12 per dozen with 6 dozen bananas at Rs.8 per dozen then what is the cost price of mixed bananas per dozen?
a) Rs.6.40
b) Rs.10
c) Rs.9.6
d) Rs.10.2
e) None of the above