A. 2km/hr
B. 4km/hr
C. 6km/hr
D. 9km/hr
Explanation:
Speed upstream = 3/3 km/hr =1 km/hr
Speed downstream = 15/3 km/hr = 5 km/hr
Speed of current = ½(5 -1) km/hr = 2 km/hr
A. Rs. 550
B. Rs. 551.25
C. Rs. 560
D. Rs. 560.75
Explanation:
Let each installment be Rs. x. Then,
x/(1 + 5/100) + x/(1 + 5/100)2 = 1025
820x + 1025 * 441
x = 551.25
So, value of each installment = Rs. 551.25
[B].
[C].
[D].
Answer: Option C
Explanation:
| Required number of ways | = (8C5 x 10C6) | |||||||
| = (8C3 x 10C4) | ||||||||
|
||||||||
| = 11760. |
A. 3
B. 4
C. 4 (1/2)
D. Insufficient data
Explanation:
M = 4
S = 2
US = 4 – 2 = 2
D = 6
T = 6/2 = 3
[B].
[C].
[D].
Answer: Option C
Explanation:
Speed of train relative to jogger = (45 – 9) km/hr = 36 km/hr.
| = | 36 x | 5 | m/sec | |
| 18 |
= 10 m/sec.
Distance to be covered = (240 + 120) m = 360 m.
| Time taken = | 360 | sec | = 36 sec. | |
| 10 |
[B].
[C].
[D].
Answer: Option C
Explanation:
For an income of Rs. 756, investment = Rs. 9000.
| For an income of Rs. | 21 | , investment = Rs. | 9000 | x | 21 | = Rs. 125. | ||
| 2 | 756 | 2 |
For a Rs. 100 stock, investment = Rs. 125.
| Market value of Rs. 100 stock = Rs. | 125 – | 1 | = Rs. 124.75 | ||
| 4 |