Question : Suppose that you have four 10 km segments to your automobile trip.You

drive your car:(1) 100 km/hr for the first 10 km(2) 110 km/hr for the second 10 km

(3) 90 km/hr for the third 10 km(4) 120 km/hr for the fourth 10 km

Q1 : Then the appropriate mean to calculate average speed (velocity) for your tripe is

AArithmetic meanBHarmonic meanCGeometric meanDMedian

Q2 : The value of average speed (velocity) for your tripe (km/h) is

A105B103.8C30D100

Q 3: The probability that any one of two engines on an aircraft will not fail is 0.95. Assuming that both engines operate independently of each other, the probability that both engines will not fail is:

(A) 0.95 x 0.95(B) 0.05 x 0.05(C) 0.95+0.95(D) 0.05+0.05

Q4: If A and B are two mutually exclusive events with P(A) = 0.15 and P(B) = 0.4, then P(A and not B) is:

(A) 0.85(B) 0.60(C) 0.15(D) 0.40