[B].
[C].
[D].
Answer: Option C
Explanation:
The terms are successively divided by 12, 10, 8, 6, …etc.
So, 24 is wrong, it should be 8 (48/6 = 8).
[B].
| 5 | 1 |
| 2 |
[C].
[D].
Answer: Option C
Explanation:
| B’s 10 day’s work = | 1 | x 10 | = | 2 | . | ||
| 15 | 3 |
| Remaining work = | 1 – | 2 | = | 1 | . | ||
| 3 | 3 |
| Now, | 1 | work is done by A in 1 day. |
| 18 |
| 1 | work is done by A in | 18 x | 1 | = 6 days. | |||
| 3 | 3 |
[B].
[C].
[D].
Answer: Option B
Explanation:
Let the price of a saree and a shirt be Rs. x and Rs. y respectively.
Then, 2x + 4y = 1600 …. (i)
and x + 6y = 1600 …. (ii)
Divide equation (i) by 2, we get the below equation.
=> x + 2y = 800. — (iii)
Now subtract (iii) from (ii)
x + 6y = 1600 (-)
x + 2y = 800
—————-
4y = 800
—————-
Therefore, y = 200.
Now apply value of y in (iii)
=> x + 2 x 200 = 800
=> x + 400 = 800
Therefore x = 400
Solving (i) and (ii) we get x = 400, y = 200.
Cost of 12 shirts = Rs. (12 x 200) = Rs. 2400.
A. Rs. 51.25
B. Rs. 52
C. Rs. 54.25
D. Rs. 60
Explanation:
Sum = (50 * 100) / (2 * 5) = Rs. 500
Amount = [500 * (1 + 5/100)2] = Rs. 551.25
C.I. = (551.25 – 500) = Rs. 51.25.
[B].
[C].
[D].
Answer: Option B
Explanation:
Required number = H.C.F. of (1657 – 6) and (2037 – 5)
= H.C.F. of 1651 and 2032 = 127.
[B].
[C].
[D].
Answer: Option C
Explanation:
Angle traced by hour hand in 12 hrs = 360°.
| Angle traced by hour hand in 5 hrs 10 min. i.e., | 31 | hrs = | 360 | x | 31 | ° | = 155°. | ||
| 6 | 12 | 6 |
[B].
[C].
[D].
Answer: Option D
Explanation:
A : B = 100 : 90.
A : C = 100 : 87.
| B | = | B | x | A | = | 90 | x | 100 | = | 30 | . |
| C | A | C | 100 | 87 | 29 |
When B runs 30 m, C runs 29 m.
| When B runs 180 m, C runs | 29 | x 180 | m | = 174 m. | |
| 30 |
B beats C by (180 – 174) m = 6 m.