Oracle aptitude placement paper

Information that Oracle is going to visit our college campus for placement this year increased our excitement level. I was determined to make the best use of this opportunity and start my career with the top notch company of India. They conducted a test to shortlist the candidates our of 110. They asked us questions on aptitude. Here are some that I remember and hope that you will find useful. I prepared from CareerRide for my placement and it was quite useful. Thanks for all your guidance, CareerRide!

A 140 cm long tape is to be cut into two pieces such that one piece will be 2/5th as long as the other. Calculate the length of the shorter piece.
a) 30 cm b) 20 cm c) 40 cm d) 35 cm

The speed of a boat in still water in 45 km/hr and the rate of current is 9 km/hr. The distance travelled downstream in 18 minutes will be
a) 5.4 kms b) 16.2 kms c) 14.2 kms d) 10 kms

How much pure alcohol should we add to 12 gallons of 20% acid solution to obtain a solution that is 80%?
a) 3 gallons b) 6 gallons c) 8 gallons d) 9 gallons

2, 6, 12, 20, 30, ‘?’
a.) 44 b.) 40 c.) 36 d.) 42 e.) 34

I go 5 km east then turn right and go 8 km. Then turn left and go 5 km and then I turn left and go 8 km. At what distance am I from starting point?

a.) 10 km b.) 8 km c.)6 km d.)7 km e.) 9 km