[B].
[C].
[D].
Answer: Option D
Explanation:
3.87 – 2.59 = (3 + 0.87) – (2 + 0.59)
| = | 3 + | 87 | – | 2 + | 59 | ||||
| 99 | 99 |
| = 1 + | 87 | – | 59 | ||
| 99 | 99 |
| = 1 + | 28 |
| 99 |
= 1.28.
[B].
[C].
[D].
Answer: Option D
Explanation:
Required numbers are 24, 30, 36, 42, …, 96
This is an A.P. in which a = 24, d = 6 and l = 96
Let the number of terms in it be n.
Then tn = 96 a + (n – 1)d = 96
24 + (n – 1) x 6 = 96
(n – 1) x 6 = 72
(n – 1) = 12
n = 13
Required number of numbers = 13.
[B].
[C].
[D].
Answer: Option C
Explanation:
There are 6 letters in the given word, out of which there are 3 vowels and 3 consonants.
Let us mark these positions as under:
(1) (2) (3) (4) (5) (6)
Now, 3 vowels can be placed at any of the three places out 4, marked 1, 3, 5.
Number of ways of arranging the vowels = 3P3 = 3! = 6.
Also, the 3 consonants can be arranged at the remaining 3 positions.
Number of ways of these arrangements = 3P3 = 3! = 6.
Total number of ways = (6 x 6) = 36.
[B].
[C].
[D].
Answer: Option D
Explanation:
Let B’s capital be Rs. x.
| Then, | 3500 x 12 | = | 2 | ||
| 7x | 3 |
14x = 126000
x = 9000.
[B].
[C].
[D].
Answer: Option B
Explanation:
Let rate = R% and time = R years.
| Then, | 1200 x R x R | = 432 | ||
| 100 |
12R2 = 432
R2 = 36
R = 6.
Video Explanation: https://youtu.be/TjjI4iRkzT0
A. Rs.8082
B. Rs.7800
C. Rs.8100
D. Rs.8112
Explanation:
A = 7500(26/25)2 = 8112
[B].
[C].
[D].
Answer: Option D
Explanation:
Let the number be x and on dividing x by 5, we get k as quotient and 3 as remainder.
x = 5k + 3
x2 = (5k + 3)2
= (25k2 + 30k + 9)
= 5(5k2 + 6k + 1) + 4
On dividing x2 by 5, we get 4 as remainder.