MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Mathematics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
If three positive numbers are inserted between 4 and 512 such that the resulting sequence is a G.P., which of the following is not among the numbers inserted? |
| A. | 256 |
| B. | 16 |
| C. | 64 |
| D. | 128 |
| Answer» E. | |
| 2. |
Which of the following is the geometric mean of 3 and 12. |
| A. | 4 |
| B. | 6 |
| C. | 9 |
| D. | 10 |
| Answer» C. 9 | |
| 3. |
The sum of first three terms of a G.P. is 21/2 and their product is 27. Which of the following is not a term of the G.P. if the numbers are positive? |
| A. | 3 |
| B. | 2/3 |
| C. | 3/2 |
| D. | 6 |
| Answer» C. 3/2 | |
| 4. |
The sum of first three terms of a G.P. is 21/2 and their product is 27. Find the common ratio. |
| A. | 2 |
| B. | 1/2 |
| C. | 2 or 1/2 |
| D. | neither 2 nor 1/2 |
| Answer» D. neither 2 nor 1/2 | |
| 5. |
How many terms of G.P. 2,4,8,16, are required to give sum 254? |
| A. | 4 |
| B. | 5 |
| C. | 6 |
| D. | 7 |
| Answer» E. | |
| 6. |
Find the sum of series 1+1/2 + 1/4 + . up to 6 terms. |
| A. | 63/32 |
| B. | 32/63 |
| C. | 26/53 |
| D. | 53/26 |
| Answer» B. 32/63 | |
| 7. |
In a G.P., 5th term is 27 and 8th term is 729. Find its 11th term. |
| A. | 729 |
| B. | 2187 |
| C. | 6561 |
| D. | 19683 |
| Answer» E. | |
| 8. |
Which term of G.P. 25, 125, 625, . is 390625? |
| A. | 5 |
| B. | 6 |
| C. | 7 |
| D. | 8 |
| Answer» D. 8 | |
| 9. |
In G.P. 4, 8, 16, 32, find the sum up to 5th term. |
| A. | 16 |
| B. | 64 |
| C. | 128 |
| D. | 124 |
| Answer» E. | |
| 10. |
If a=3 and r=2 then find the sum up 5th term. |
| A. | 95 |
| B. | 82 |
| C. | 93 |
| D. | 97 |
| Answer» D. 97 | |
| 11. |
If r=1 in a G.P. then what is the sum to n terms? |
| A. | n*a |
| B. | a/n |
| C. | (n-1) a |
| D. | (n+1) a |
| Answer» B. a/n | |
| 12. |
If a sequence is in the form 2*5n then which of the following may be the sequence? |
| A. | Arithmetic progression |
| B. | Geometric Progression |
| C. | Harmonic Progression |
| D. | Special Progression |
| Answer» C. Harmonic Progression | |
| 13. |
If first term of a G.P. is 20 and common ratio is 4. Find the 5th term. |
| A. | 10240 |
| B. | 40960 |
| C. | 5120 |
| D. | 2560 |
| Answer» D. 2560 | |
| 14. |
What is nth term of a G.P.? |
| A. | a<sub>n</sub> = a + (n-1) d |
| B. | a<sub>n</sub> = a + (n) d |
| C. | a<sub>n</sub> = a*r<sup>n-1</sup> |
| D. | a<sub>n</sub> = a*r<sup>n</sup> |
| Answer» D. a<sub>n</sub> = a*r<sup>n</sup> | |
| 15. |
A sequence is called ___________________ if an+1 = an * r. |
| A. | arithmetic progression |
| B. | geometric Progression |
| C. | harmonic Progression |
| D. | special Progression |
| Answer» C. harmonic Progression | |