MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Mathematics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
An engine has initially 24000 ml oil. The amount of oil has to be increased at the rate of 5% every six month. Find the time-period at the end of which the amount of oil becomes 27783ml. |
| A. | n = ( frac{3}{2} ) |
| B. | n = ( frac{3}{4} ) |
| C. | n = ( frac{5}{2} ) |
| D. | n = ( frac{1}{2} ) |
| Answer» B. n = ( frac{3}{4} ) | |
| 2. |
900 workers were employed to construct a dam in four years. At the end of first year, 5% workers were retrenched. At the end of the second year 2% of the workers were retrenched. To complete the construction in time, the number of workers were increased to 10% at the end of third year. How many workers were working at the end of fourth year. |
| A. | 945 |
| B. | 1000 |
| C. | 921 |
| D. | 989 |
| Answer» D. 989 | |
| 3. |
Manish opened a cafe with an initial investment of Rs. 64000. In the first year he incurred the loss of 10%. During second year he gained the profit of 4% and in the third year he gained the profit of 15%. Calculate his net profit gained in the entire three years. |
| A. | 68889.5 |
| B. | 4889.6 |
| C. | 68889.61 |
| D. | 68889.60 |
| Answer» C. 68889.61 | |
| 4. |
The bacteria in a culture grows by 5% in the first hour, decreases by 10% in the second hour and increases by 2% in the third hour. If the original count of the bacteria is 50000, Calculate the count of bacteria at the end of 3 hours. |
| A. | 48000 |
| B. | 48195 |
| C. | 24097 |
| D. | 24095 |
| Answer» C. 24097 | |
| 5. |
The production of spare parts rose to 25000 from 16000 in 2 years. Find the rate of growth per annum. |
| A. | 25 |
| B. | 20 |
| C. | 250 |
| D. | 200 |
| Answer» B. 20 | |
| 6. |
If the population of a city has been increasing at the rate of 10%. The present population of the city is 9680000. Find its population 2 years ago. |
| A. | 800000 |
| B. | 8000 |
| C. | 80000 |
| D. | 8000000 |
| Answer» E. | |
| 7. |
The population of a sate decreases every year at the rate 4% per annum. The population of the state 3 years ago was 150000. Find present population. |
| A. | 576000 |
| B. | 138240 |
| C. | 57600 |
| D. | 13824 |
| Answer» C. 57600 | |
| 8. |
The population of a village was 10000 four years ago. If it had increased by 2%, 2.5%, 3%, 2% in last four years. Find the present population of the village. |
| A. | 267.903 |
| B. | 260 |
| C. | 266.903 |
| D. | 266 |
| Answer» B. 260 | |
| 9. |
The population of the town is 30000. The annual birth rate is 5% and the annual death rate is 3%. Calculate the population after 2 years. |
| A. | 61212 |
| B. | 612 |
| C. | 312 |
| D. | 31212 |
| Answer» E. | |
| 10. |
The population of a city is increasing at the rate of 10% per annum. Calculate the population of the city on this basis after 3 years if the current population is 10000. |
| A. | 12100 |
| B. | 13100 |
| C. | 13310 |
| D. | 1210 |
| Answer» D. 1210 | |