[B].
[C].
[D].
Answer: Option D
Explanation:
| 1 ÷ 0.2 = | 1 | = | 10 | = 5; |
| 0.2 | 2 |
0.2 = 0.222…;
(0.2)2 = 0.04.
0.04 < 0.2 < 0.22….<5.
Since 0.04 is the least, so (0.2)2 is the least.
| 1 |
| 6 |
[B].
| 1 |
| 8 |
[C].
| 1 |
| 9 |
[D].
| 1 |
| 12 |
Answer: Option C
Explanation:
In two throws of a dice, n(S) = (6 x 6) = 36.
Let E = event of getting a sum ={(3, 6), (4, 5), (5, 4), (6, 3)}.
| P(E) = | n(E) | = | 4 | = | 1 | . |
| n(S) | 36 | 9 |
A. 2km/hr
B. 3km/hr
C. 4 km/hr
D. 5 km/hr
Explanation:
Distance covered upstream in 45/4min =3/4 km
Distance covered upstream in 1 hr =(3/4 × 2/15 × 60) km/hr = 4 km/hr
Distance covered downstream in 15/2 min = ¾ km
Distance covered downstream in 1hr
= (3/4 × 2/15 × 60)km/hr = 6 km/hr
Speed of the man in still water
= ½ (6 + 4)km/hr = 5 km/hr
[B].
[C].
[D].
Answer: Option B
Explanation:
Formula: (Divisor*Quotient) + Remainder = Dividend.
Soln:
(56*Q)+29 = D ——-(1)
D%8 = R ————-(2)
From equation(2),
((56*Q)+29)%8 = R.
=> Assume Q = 1.
=> (56+29)%8 = R.
=> 85%8 = R
=> 5 = R.
A. 3
B. 7.5
C. 2.25
D. 1.5
Explanation:
M = 4.5
S = x
DS = 4.5 + x
US = 4.5 + x
4.5 + x = (4.5 – x)2
4.5 + x = 9 -2x
3x = 4.5
x = 1.5
A. Rs.635.50
B. Rs.613.50
C. Rs.675.50
D. Rs.653.50
[B].
[C].
[D].
Answer: Option D
Explanation:
Since each desired number is divisible by 5, so we must have 5 at the unit place. So, there is 1 way of doing it.
The tens place can now be filled by any of the remaining 5 digits (2, 3, 6, 7, 9). So, there are 5 ways of filling the tens place.
The hundreds place can now be filled by any of the remaining 4 digits. So, there are 4 ways of filling it.
Required number of numbers = (1 x 5 x 4) = 20.