Exams

A balloon leaves from a point P rises at a uniform speed. After 6 minutes, an observer situated at a distance of 450√3 metres from point P observes that angle of elevation of the balloon is 60 deg. Assume that point of observation and point P are on the same level. What is the speed (in m/s) of the balloon?

What is the value of [(sin x + sin y) (sin x – sin y)]/[(cosx + cosy) (cosy – cosx)]?

If 75$26 = 4, 69$53 = 7 then what is the value of 82$46 = ?

Which of the following are highly compressible?

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

We often feel, in such an environment, that our social sphere _____________ around us. We can see, in quantitative values — the number of likes, re-posts, shares — the interest garnered by anything created by us. This makes social interaction slightly more ___________, when we start to think of it in number terms. It becomes easier to see it in visual terms, rather ________ emotive cues. And _____________ that happens we are motivated to reveal only those parts of ____________ that we know will trigger a considerable quantitative response.

The average weight of 30 students in a class is 25 kgs. If the weight of the class teacher is added, the average weight increase by 2 kgs. The weight of the class teacher in kgs is

Select the option that will correctly fit in the blank space in the given figure series.

___ does not relate to measurement of memory capacity.