[B].
[C].
[D].
Answer: Option C
Explanation:
| 29.94 | = | 299.4 |
| 1.45 | 14.5 |
| = | 2994 | x | 1 | [ Here, Substitute 172 in the place of 2994/14.5 ] | ||
| 14.5 | 10 |
| = | 172 |
| 10 |
= 17.2
A. 5 %
B. 10 %
C. 15 %
D. 20 %
Explanation:
P be the principle and R % Per annum be the rate.
P(1 + R/100) 3 = 10648 – (i)
P(1 + R/100) 2 = 9680 – (ii)
By dividing (i) and (ii)
(1 +R/100) = 10648/9680 Or
R/100 = 968/9680 = 1/10 or
R = 10 %
A. 40 minutes
B. 1 hour
C. 1 hr 15 min
D. 1 hr 30 min
[B].
[C].
[D].
Answer: Option B
Explanation:
In each number except 383, the product of first and third digits is the middle one.
[B].
[C].
[D].
Answer: Option A
Explanation:
| Gain in 2 years |
|
||||||||||||||||
| = Rs. (625 – 400) | |||||||||||||||||
| = Rs. 225. |
| Gain in 1 year = Rs. | 225 | = Rs. 112.50 | ||
| 2 |
Video Explanation: https://youtu.be/zBjcwqIcmL4
| 7 |
| 8 |
[B].
| 13 |
| 16 |
[C].
| 31 |
| 40 |
[D].
| 63 |
| 80 |
Answer: Option A
Explanation:
L.C.M. of 8, 16, 40 and 80 = 80.
| 7 | = | 70 | ; | 13 | = | 65 | ; | 31 | = | 62 |
| 8 | 80 | 16 | 80 | 40 | 80 |
| Since, | 70 | > | 65 | > | 63 | > | 62 | , so | 7 | > | 13 | > | 63 | > | 31 |
| 80 | 80 | 80 | 80 | 8 | 16 | 80 | 40 |
| So, | 7 | is the largest. |
| 8 |
[B].
[C].
[D].
Answer: Option C
Explanation:
4a2 – 4a + 1 + 3a
= (1)2 + (2a)2 – 2 x 1 x 2a + 3a
= (1 – 2a)2 + 3a
= (1 – 2a) + 3a
= (1 + a)
= (1 + 0.1039)
= 1.1039