Quantitative Aptitude
The sum of the radius of the base and the height of the solid cylinder is 96 meters. If the total surface area of the cylinder is 12672 m2. , what is the curved surface area and the volume of the cylinder respectively?\(\text{(use } \pi = \frac{22}{7}\text{)}\)
9900 m2, 103950 m3
8600 m2, 105850 m3
9500 m2, 113550 m3
7660 m2, 93990 m3
A/B12 hollow hemispherical stell bowl can contain \(\frac{686}{3}\pi\ \text{cubic unit}\) of liquid. The outer radius is 9 units. How much steel is used in making the bowl ?
\(\frac{772}{3}\pi\ \text{cubic units}\)
\(\frac{433}{3}\pi\ \text{cubic units}\)
\(\frac{727}{3}\pi\ \text{cubic units}\)
\(\frac{343}{3}\pi\ \text{cubic units}\)
Rice worth ₹84 per kg and ₹96 per kg is mixed with a third variety of rice in the ratio 1 : 1 : 2. If the mixture is worth ₹99 per kg, the price of the third variety per kg is:
The amount of profit and loss will be the same if an article is sold at ₹19,125 and ₹14,625. Find the percentage of profit if an article is sold at ₹19,125.
\(12 \tfrac{1}{4}\%\)
\(13 \tfrac{1}{3}\%\)
12%
\(11 \tfrac{3}{4}\%\)
Marks (out of 100) of four students in Hindi, English and Mathematics are given in the following table.
Study the table carefully and answer the question that follows.
| Students/Subjects | Hindi | English | Mathematics |
| Mukesh | 75 | 80 | 95 |
| Shivam | 80 | 75 | 90 |
| Soumya | 70 | 65 | 85 |
| Shilpee | 80 | 70 | 81 |
What is the overall percentage marks obtained by Shilpee in the given three subjects?