[B].
[C].
[D].
Answer: Option B
Explanation:
The terms are alternatively multiplied by 1.5 and divided by 3. However, 18.5 does not satisfy it.
[B].
[C].
[D].
Answer: Option A
Explanation:
Given number = 97215×6
(6 + 5 + 2 + 9) – (x + 1 + 7) = (14 – x), which must be divisible by 11.
x = 3
A. Rs. 2.50
B. Rs. 3
C. Rs. 3.75
D. Rs. 4
Explanation:
S.I. = (1200 * 10 * 1)/100 = Rs. 120
C.I. = [1200 * (1 + 5/100)2 – 1200] = Rs. 123 Difference = (123 – 120) = Rs. 3.
[B].
[C].
[D].
Answer: Option D
Explanation:
35 + 125 = 17.88
35 + 25 x 5 = 17.88
35 + 55 = 17.88
85 = 17.88
5 = 2.235
80 + 65 = 16 x 5 + 65
= 45 + 65
= 105 = (10 x 2.235) = 22.35
[B].
[C].
[D].
Answer: Option A
Explanation:
Let Arun’s weight by X kg.
According to Arun, 65 < X < 72
According to Arun’s brother, 60 < X < 70.
According to Arun’s mother, X <= 68
The values satisfying all the above conditions are 66, 67 and 68.
| Required average = | 66 + 67 + 68 | = | 201 | = 67 kg. | ||||
| 3 | 3 |
[B].
[C].
[D].
Answer: Option D
Explanation:
| 5% of A + 4% of B = | 2 | (6% of A + 8% of B) |
| 3 |
| 5 | A + | 4 | B | = | 2 | 6 | A + | 8 | B | |||
| 100 | 100 | 3 | 100 | 100 |
| 1 | A + | 1 | B | = | 1 | A + | 4 | B | |
| 20 | 25 | 25 | 75 |
| 1 | – | 1 | A = | 4 | – | 1 | B | |||
| 20 | 25 | 75 | 25 |
| 1 | A = | 1 | B | |
| 100 | 75 |
| A | = | 100 | = | 4 | . |
| B | 75 | 3 |
Required ratio = 4 : 3
Video Explanation: YouTube Video
A. 3 1/3 km/hr
B. 3 1/9 km/hr
C. 1 ¼ km/hr
D. 4 2/3 km/hr
Explanation:
Let Speed upstream = x km/hr
Speed downstream = 3x km/hr
Speed in still water = ½ (x+3x) km/hr = 2x km/hr
Speed of current = ½ (3x-x) km/hr = x km/hr
2x = 28/3 or x = 14/3 = 4 2/3 km/hr