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- Question
How many liters of oil at Rs.40 per liter should be mixed with 240 liters of a second variety of oil at Rs.60 per liter so as to get a maximum whose cost is Rs.52 per liter?
Options- A. 120
- B. 180
- C. 110
- D. 160
- Correct Answer
- 160
Explanation
Applying Allegation Method to first calculate the ratio in which they have to be mixed: = 8 : 12 = 2 : 3
Thus, the two varieties of oil should be mixed in the ratio 2 : 3. So, if 240 liters of the second variety are taken, then 160 liters of the first variety should be taken - 1. 121% of 5103 =?
Options- A. 6000
- B. 8000
- C. 10000
- D. 4000 Discuss
- 2. Rs. 20 is the true discount on Rs. 260 due after a certain time. What will be the true discount on the same sum due after half of the former time, the rate of interest being the same?
Options- A. Rs. 10
- B. Rs. 10.40
- C. Rs. 15.20
- D. Rs. 13 Discuss
- 3. The circumcentre of a triangle is always the point of intersection of the :
Options- A. Medians
- B. Bisectors
- C. Perpendiculars
- D. Perpendiculars dropped from the, vertices on the opposite side of the triangle Discuss
- 4. The true discount on a bill of Rs. 540 is Rs. 90. The banker's discount is:
Options- A. Rs. 60
- B. Rs. 108
- C. Rs. 110
- D. Rs. 112 Discuss
- 5. Today is Monday. After 61 days, it will be:
Options- A. Wednesday
- B. Saturday
- C. Tuesday
- D. Thursday Discuss
- 6. If the rate of simple interest is 12% per annum the amount that would fetch interest of Rs 6000 per annum is?
Options- A. Rs 7200
- B. Rs 72000
- C. Rs 50000
- D. Rs 48543.69 Discuss
- 7. A man walked diagonally across a square lot. Approximately, what was the percent saved by not walking along the edges?
Options- A. 20
- B. 24
- C. 30
- D. 33 Discuss
- 8. 75 % of a number when added to 75 is equal to that number. What is the number?
Options- A. 280
- B. 400
- C. 300
- D. 305 Discuss
- 9. The sum of three numbers is 98. If the ratio of the first to second is 2 :3 and that of the second to the third is 5 : 8, then the second number is:
Options- A. 20
- B. 30
- C. 48
- D. 58 Discuss
- 10. If 35% of a number is 112, then the number is
Options- A. 380
- B. 300
- C. 320
- D. 35 Discuss
More questions
Correct Answer: 6000
Explanation:
? = 5103 x 121/100
= 61.74.63 = 6000
Correct Answer: Rs. 10.40
Explanation:
S.I. on Rs. 240 for half the time = Rs. 10.
T.D. on Rs. 250 = Rs. 10.
| ∴ T.D. on Rs. 260 = Rs. | ❨ | 10 | x 260 | ❩ | = Rs. 10.40 |
| 250 |
Correct Answer: Bisectors
Explanation:
The circumcentre of a triangle is always the point of intersection of the Bisectors .Hence required answer will be bisectors .
Correct Answer: Rs. 108
Explanation:
∴ S.I. on Rs. 450 = Rs. 90.
| S.I. on Rs. 540 = Rs. | ❨ | 90 | x 540 | ❩ | = Rs. 108. |
| 450 |
∴ B.D. = Rs. 108.
Correct Answer: Saturday
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.
Correct Answer: Rs 50000
Explanation:
Rate of Interest = 12% per annum
Simple Interest =Rs 6000 per annum
Let 'P' is the principal
SI= (P x R x T)/100
where , SI= Simple Interest
T= Time
R= Rate
? 6000=(P x 1 x 12)/100
? P =(6000 x 100)/12
= Rs 50000
Hence the required amount is Rs 50000
Correct Answer: 30
Explanation:
Then, AB + BC = 2x metres.
AC = √2x = (1.41x) m.
Saving on 2x metres = (0.59x) m.
| Saving % = | ❨ | 0.59x | x 100 | ❩% | = 30% (approx.) |
| 2x |
Correct Answer: 300
Explanation:
Let 'x' be the required number
0.75x + 75 =x
? 0.25x=75
? x=75 / 0.25 =300
Correct Answer: 30
Explanation:
| A : B = 2 : 3 and B : C = 5 : 8 = | ❨ | 5 x | 3 | ❩ | : | ❨ | 8 x | 3 | ❩ | = 3 : | 24 |
| 5 | 5 | 5 |
| ⟹ A : B : C = 2 : 3 : | 24 | = 10 : 15 : 24 |
| 5 |
| ⟹ B = | ❨ | 98 x | 15 | ❩ | = 30. |
| 49 |
Correct Answer: 320
Explanation:
Let the number be y.
Then, 35% of y = 112
( 35 / 100 )y = 112
y = ( 112 x 100 ) / 35
= 320
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