Delhi SI CPO Nov 25 Shift-1
For the following questions answer them individually
If each side of a square is decreased by 17%, then by what percentage does its area decrease?
The given bar graph shows the number of students of two schools over a period of six years.
In the bar graph, in which year is the absolute difference of the students from schools A to B taken together, the maximum?
If A’s salary is 30% more than B’s salary, then by what percentage is B’s salary less than that of A? (correct to one decimal place)
If $$4 - 2 \sin^2 \theta - 5 \cos \theta = 0, 0^\circ < \theta < 90^\circ$$, then the value of $$\cos \theta - \tan \theta$$ is:
Pipes A and B can fill a tank in 16 hours and 24 hours, respectively, whereas pipe C can empty the full tank in 40 hours. All three pipes are opened together, but pipe C is closed after 10 hours. After how many hours will the remaining part of the tank be filled?
The value of $$1 - 3 \div 6$$ of $$2 + (4 \div 4 of \frac{1}{4}) \div 8 + (4 \times 8 \div \frac{1}{4}) \times \frac{1}{8}$$ is:
The value of $$\frac{5.35 \times 5.35 \times 5.35 + 3.65 \times 3.65 \times 3.65}{53.5 \times 53.5 + 36.5 \times 36.5 - 53.5 \times 36.5}$$ is:
One side of a rhombus is 13 cm and one of its diagonals is 24 cm. What is the area (in $$cm^2$$) of rhombus?
