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- Question
In what ratio must a grocer mix two varieties of tea worth Rs. 60 a kg and Rs. 65 a kg so that by selling the mixture at Rs. 68.20 a kg he may gain 10%?
Options- A. 3 : 2
- B. 3 : 4
- C. 3 : 5
- D. 4 : 5
- Correct Answer
- 3 : 2
ExplanationS.P. of 1 kg of the mixture = Rs. 68.20, Gain = 10%.C.P. of 1 kg of the mixture = Rs. ❨ 100 x 68.20 ❩ = Rs. 62. 110 By the rule of alligation, we have:
Cost of 1 kg tea of 1st kind. Cost of 1 kg tea of 2nd kind. Rs. 60 Mean Price
Rs. 62Rs. 65 3 2 ∴ Required ratio = 3 : 2.
More questions
- 1. The sum of the present ages of two persons A and B is 60. If the age of A is twice that of B, find the sum of their ages 5 years.
Options- A. 60 years
- B. 65 years
- C. 70 years
- D. 75 years Discuss
Correct Answer: 70 years
Explanation:
Take A's age as a, B's age as b. a + b = 60 a = 2b So, b + 2b = 60 3b = 60 b = 20 a = 40 So A is 40, B is 20. In 5 years' time, A will be 45, B will be 25. so the sum of their ages will be 70- 2. Findout the odd word/letters/number/number pair from the given alternatives.
Options- A. 5712
- B. 6212
- C. 3811
- D. 7831 Discuss
Correct Answer: 5712
- 3. Two labourers A and B are paid a total of Rs 650 per day. If A is paid 160 percent of what is paid to B, how much (in Rs) is B paid?
Options- A. 250
- B. 400
- C. 350
- D. 450 Discuss
Correct Answer: 250
- 4. Cost price of a calculator is Rs 495. If the profit percentage is 40%, then what is the value (in Rs) of profit?
Options- A. 226
- B. 198
- C. 186
- D. 218 Discuss
Correct Answer: 198
- 5. Tan 45° + Cosec 60° =
Options- A. (1 + 2?2)/2
- B. (?3 + 2)/?6
- C. 5/?3
- D. (3 + 2?3)/3 Discuss
Correct Answer: (3 + 2?3)/3
- 6. Two buses travel to a place at 45 km/hr and 60 km/hr respectively. If the second bus takes 51?2 hours less than the first for the journey, the length of the journey is:
Options- A. 900 km
- B. 940 km
- C. 990 km
- D. 1300 km Discuss
Correct Answer: 990 km
- 7. A can write 32 pages in 6 hours and B can write 40 pages in 5 hours. If they write together, in how many hours they can write 110 pages ?
Options- A. 7 hrs
- B. 6 hrs 10 min
- C. 5 hrs 25min
- D. 8 hrs 15 min Discuss
Correct Answer: 8 hrs 15 min
Explanation:
A can write in 1hour = 32/6 pages
Similarly, B in 1 hour = 40/5 pages
Together (A+B) in 1 hour = 32/6 + 40/5 = 40/3
So, A+B write 40/3 pages in 1 hour
A+B write 110 pages in (3/40) x 110 Hours = 8 hours 15 min.
- 8. Nirmit can do 2/3 of a job in 18 days. Kashish is twice as efficient as Nirmit. In how many days Kashish will complete the job?
Options- A. 29/4
- B. 27/2
- C. 31/2
- D. 13/2 Discuss
Correct Answer: 27/2
- 9. Find the volume (in cm3) of a cube of side 7.5 cm.
Options- A. 421.875
- B. 77.145
- C. 39.245
- D. 24.435 Discuss
Correct Answer: 421.875
- 10. Select the odd word/letters/number/number pair from the given alternatives.
Options- A. Igloo
- B. Den
- C. Stables
- D. Rock Discuss
Correct Answer: Rock
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