For the following questions answer them individually
The average weight of 3 persons A, B and C is 60 kg. When D joins the group, the average weight becomes 65 kg. When another person E whose weight is 3 kg less than that ofD replaces A. the average weight of B, C, D and E becomes 67 kg. What is the weight of A ?
In a triangle ABC, right-angled at C, if $$\sec A = \frac{13}{5}$$, then find the value of $$\frac{1 + \sin A}{\cos B}$$.
Geeta can assemble a toy in 10 minutes. whereas Sudha can assemble the same roy in 15 minures. If they work together. bow nmcb time will they take to assemble 60 toys?
The given line graph shows the production (in tonnes) and the sales (in tonnes) of a company.
How much more is the production in 2015 and 2017 taken together than the sales in 2016 and 2018 taken together (in tonnes)?
If $$\cosec^2 \theta(\cos \theta - 1)(1 + \cos \theta) = k$$, then what is the value of k?
Which of the following file formats does MS Paint use to open and save files in Windows?
The musical instrument 'Kartal' from the state of Rajasthan comes under the category of ______.
Who among the following is India’s highest wicket taker in test cricket as of December 2020?