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A drinks machine offers three solutions Tea, Coffee or Random but the machine has been wired up wrongly so that each button does not give what it claims. If each drink costs Rs.50, what is the minimum amount of money that must be spent to determine with certainty the correct labeling of the buttons?
Options
a)Rs. 100
b)Can not be determined from the given information
c)Rs 150
d)Rs 50

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TCS Other Question

The function f is defined is defined as f(2x+3)= (x-3)(x+2)
What is f(31)?

a. 924
b. 4154
c. 176
d. 174
Manish and Vikas are competing with each other in a swimming competition..pool is of 50m length and the race is for 1000m. Manish crosses 50m in 2min and Vikas in 3min 15sec. How many time will they meet?
a)18
b)19
c)23
d)20