1. A box contains seven purple, five blue and eleven yellow balls. What is the minimum number of tries required to get one blue and one yellow ball ?
Answer:
Explanation:answer is 19, 11 yellow+7 purple+after that we have only one option that is to be blue so answer is 19
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2. Excluding stoppages, the speed of the bus is 54 kms /hr and with stoppages, it is 45 kmph. For how many minutes does the bus stop per hour?
Answer:
Explanation:By including stoppages, bus will cover 9km less..(54km -45km = 9km)
Excluding stoppages, x = 54 kmph
Including stoppages, y = 45 kmph
Difference, z = 9km
Time taken to cover that 9km(bus stops per hour(60minutes))= z/x(60minutes)
= 9/54(60) = 1/6(60) = 10minutes.
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MindTree HCL Technologies GlobalLogic
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