The area of the base of a closed cylinder is 1386 cm². If the height of the cylinder is 20 cm, then what is the total surface area of the cylinder? \(\text{(Use }\pi = \tfrac{22}{7}\text{)}\)
If \(\frac{P}{3} = \frac{Q}{5} = \frac{R}{2},\), then what is the value of (P + 2Q + 3R) : (P + Q + R)?
The length of a rectangle is 5 times of its breadth. If the breadth is 10 cm, then what is the area of this rectangle?
If P = \(\frac{6 \times 4 \div 2}{8 \times 3 \div 6}\) and \(Q = \frac{12 \div 4 - 2}{4 \div 3 \times 12}\), then what is the value of \(\left(\frac{P}{Q}\right)^2\)
If, on a certain sum, the simple interest for 2 years is ₹1,200, then what is the simple interest on the same sum for 5 years, if the rate of interest remains unchanged?
The following bar chart shows the marks obtained (out of 100) by a student in 7 different subjects in an examination
The total marks obtained by the student in S1 and S6 taken together is approximately what percentage of the marks obtained by the student in S4?
Param can do a piece of work alone in 24 hours, and Charan can do the same work alone in 30 hours. If they work together, what fraction of the work can they complete in 1 day?
\(\tfrac{3}{8}\)
\(\tfrac{3}{10}\)
\(\tfrac{3}{55}\)
\(\tfrac{3}{40}\)