UPSC Government Jobs Exams

A person X has four notes of Rupee 1, 2 , 5 and 10 denomination. The number of different sums of money she can form from them is [UPSC 2010 (CS-P)]
a) 16
b) 15
c) 12
d) 8

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UPSC Other Question

A person travels 12 km due North, then 15 km due East, after that 15 km due West and then 15 km due South. How far is he from the starting points? [UPSC 2009(CS-P)]
a) 6 km
b) 12 km
c) 33 km
d) 60 km A question paper had ten questions. Each question could only be answered as True (T) or False (F). Each candidate answered all the questions. Yet, no two candidates wrote the answers in an identical sequence. How many different sequences of answers are possible?[UPSC 2010 (CS-P)]
a) 20
b) 40
c) 512
d) 1024