Selected MCQ

Current Question
According to a recipe, flour and sugar are mixed. How much sugar is needed?
  • A. 360
  • B. 380
  • C. 375
  • D. 400
Correct Answer: C
Explanation:
Ratio-based mixing.
Related Question 1
Same stock problem repeated. Investment needed is ____.
  • A. Rs. 10000
  • B. Rs. 10800
  • C. Rs. 14400
  • D. Rs. 16000
Correct Answer: A
Explanation:
Direct calculation.
Related Question 2
To get income Rs. 1200 from 12% stock at 90, investment needed is ____.
  • A. Rs. 10800
  • B. Rs. 10000
  • C. Rs. 14400
  • D. Rs. 16000
Correct Answer: B
Explanation:
Investment = income ×100/(rate × face value factor).
Related Question 3
A lotion contains 50% alcohol. How much water must be added to reduce the alcohol content to 25% in 9 ml?
  • A. 3 ml
  • B. 4 ml
  • C. 5 ml
  • D. 6 ml
Correct Answer: D
Explanation:
Using the dilution Equation yields 6 mL of water.
Related Question 4
The price of an article is reduced by 25%. To restore original price, the increase needed is ____.
  • A. 33 1/3 %
  • B. 9 1/11 %
  • C. 11 1/9 %
  • D. 66 2/3 %
Correct Answer: A
Explanation:
Same logic as above, increase must be 33 1/3%.
Related Question 5
In what ratio should water be mixed with spirit to gain 20%?
  • A. 2:5
  • B. 1:5
  • C. 3:5
  • D. 4:5
Correct Answer: B
Explanation:
The profit method yields a 1:5 ratio.