[B].
[C].
[D].
Answer: Option A
Explanation:
Subtract 20, 25, 30, 35, 40, 45 from successive numbers.
So, 0 is wrong.
[B].
[C].
[D].
Answer: Option B
Explanation:
Each day of the week is repeated after 7 days.
So, after 63 days, it will be Monday.
After 61 days, it will be Saturday.
[B].
[C].
[D].
Answer: Option A
Explanation:
Let AB be the observer and CD be the tower.
Draw BE CD.
Then, CE = AB = 1.6 m,
BE = AC = 203 m.
| DE | = tan 30° = | 1 |
| BE | 3 |
| DE = | 203 | m = 20 m. |
| 3 |
CD = CE + DE = (1.6 + 20) m = 21.6 m.
[B].
[C].
[D].
Answer: Option D
Explanation:
Required numbers are 10, 15, 20, 25, …, 95
This is an A.P. in which a = 10, d = 5 and l = 95.
tn = 95 a + (n – 1)d = 95
10 + (n – 1) x 5 = 95
(n – 1) x 5 = 85
(n – 1) = 17
n = 18
| Requuired Sum = | n | (a + l) | = | 18 | x (10 + 95) = (9 x 105) = 945. |
| 2 | 2 |
[B].
[C].
[D].
Answer: Option B
Explanation:
Let their investments be Rs. x for 14 months, Rs. y for 8 months and Rs. z for 7 months respectively.
Then, 14x : 8y : 7z = 5 : 7 : 8.
| Now, | 14x | = | 5 | 98x = 40y y = | 49 | x |
| 8y | 7 | 20 |
| And, | 14x | = | 5 | 112x = 35z z = | 112 | x = | 16 | x. |
| 7z | 8 | 35 | 5 |
| x : y : z = x : | 49 | x | : | 16 | x | = 20 : 49 : 64. |
| 20 | 5 |
[B].
[C].
[D].
Answer: Option C
Explanation:
7429 Let 8597 – x = 3071
-4358 Then, x = 8597 – 3071
—- = 5526
3071
—-
[B].
[C].
[D].
Answer: Option A
Explanation:
| 106 x 106 – 94 x 94 | = (106)2 – (94)2 |
| = (106 + 94)(106 – 94) [Ref: (a2 – b2) = (a + b)(a – b)] | |
| = (200 x 12) | |
| = 2400. |