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1/6+1/t=1/6.5
thn t=-78 but for outflow - is neglected

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TCS Other Question
aAn athlete decides to run the same distance in 1/4th less time that she usually took. by how much percent will she have to increase her average speed?
a)40 b)44.4 c)33.3 d)22.2 How many 9 digit numbers are possible by using the digits 1,2,3,4,5 which are divisible by 4 if the repetition is allowed?
a)5^7 b)5^6 c)5^9 d)5^8