[B].
[C].
[D].
Answer: Option B
Explanation:
Go on adding 7, 9, 11, 13, 15, 17 respectively to obtain the next number.
So, 33 is wrong. It must be 35
[B].
[C].
[D].
Answer: Option C
Explanation:
3.14 x 106 = 3.14 x 1000000 = 3140000.
| 9 | 1 | days |
| 5 |
[B].
| 9 | 2 | days |
| 5 |
[C].
| 9 | 3 | days |
| 5 |
[D].
Answer: Option C
Explanation:
| (A + B + C)’s 1 day’s work = | 1 | , |
| 4 |
| A’s 1 day’s work = | 1 | , |
| 16 |
| B’s 1 day’s work = | 1 | . |
| 12 |
| C’s 1 day’s work = | 1 | – | 1 | + | 1 | = | 1 | – | 7 | = | 5 | . | ||||
| 4 | 16 | 12 | 4 | 48 | 48 |
| So, C alone can do the work in | 48 | = 9 | 3 | days. |
| 5 | 5 |
[B].
[C].
[D].
Answer: Option D
Explanation:
Let the required number of days be x.
Less men, More days (Indirect Proportion)
27 : 36 :: 18 : x 27 x x = 36 x 18
| x = | 36 x 18 |
| 27 |
x = 24.
| 66 | 2 |
| 3 |
[B].
[C].
| 105 | 1 |
| 3 |
[D].
Answer: Option B
Explanation:
Let C.P. be Rs. x and S.P. be Rs. y.
Then, 3(y – x) = (2y – x) y = 2x.
Profit = Rs. (y – x) = Rs. (2x – x) = Rs. x.
| Profit % = | x | x 100 | % = 100% | |
| x |
Video Explanation: https://youtu.be/dPzF10mGsWE
[B].
[C].
[D].
Answer: Option B
Explanation:
Numbers are (23 – 1), (33 – 1), (43 – 1), (53 – 1), (63 – 1), (73 – 1) etc.
So, the next number is (83 – 1) = (512 – 1) = 511.
[B].
[C].
[D].
Answer: Option C
Explanation:
Let 4300731 – x = 2535618
Then x, = 4300731 – 2535618 = 1765113