After several defeats in wars, Robert Bruce went in exile and wanted to commit suicide. Just
before committing suicide, he came across a spider attempting tirelessly to have its net. Time
and again, the spider failed but that did not deter it to refrain from making attempts. Such
attempts by the spider made Bruce curious. Thus, Bruce started observing the nearimpossible
goal of the spider to have the net. Ultimately, the spider succeeded in having its net despite several
failures. Such act of the spider encouraged Bruce not to commit suicide. And then, Bruce went
back again and won many a battle, and the rest is history. Which one of the following assertions
is best supported by the above information?
The current erection cost of a structure is Rs. 13,200. If the labour wages per day increase by
1/5 of the current wages and the working hours decrease by 1/24 of the current period, then the
new cost of erection in Rs. is
Find the sum of the expression
`1/(sqrt(1) + sqrt(2))` + `1/(sqrt(2) + sqrt(3))` + `1/(sqrt(3) + sqrt(4))` +..... +`1/(sqrt(80) + sqrt(81))`
A tourist covers half of his journey by train at 60 km/h, half of the remainder by bus at 30
km/h and the rest by cycle at 10 km/h. The average of the tourist in km/h during his entire
journey is
Out of all the 2-digit integers between 1 and 100, a 2-digit number has to be selected at random.
What is the probability that the selected number is not divisible by 7?