CA Foundation · Quantitative Aptitude · Ratio and Proportion, Indices and Logarithms
The monthly wages of 12 workers at a factory in Pune total ₹1,80,000. A contractor wants to hire 18 workers on the same pay basis per worker. If wages are directly proportional to the number of workers, what will be the total monthly wage bill?
The total wage bill will be ₹2,70,000. Each worker earns ₹15,000 (₹1,80,000 divided by 12), and wages vary directly with the number of workers, so 18 workers cost 18 times ₹15,000, which is ₹2,70,000.
- A₹2,40,000
- B₹2,70,000Correct
- C₹2,25,000
- D₹1,20,000
Explanation
Wage per worker = 1,80,000 / 12 = ₹15,000. For 18 workers, the bill is 18 × 15,000 = ₹2,70,000. Check: ratio 18/12 = 1.5 and 1,80,000 × 1.5 = 2,70,000. The option ₹1,20,000 wrongly inverts the ratio.
Did you get it right without looking?
One question tells you little. A timed set on Ratio and Proportion, Indices and Logarithms shows your real accuracy, how long you take and where you lose marks.
More Ratio and Proportion, Indices and Logarithms questions
- The value of log₅ 125 + log₂ 32 − log₁₀ 1000 is:
- The mean proportional between 4 and 36 is:
- If log₁₀ 2 = 0.3010, then the number of digits in 2^40 is:
- Using the change of base rule, log₈ 16 equals:
- A variable Y is inversely proportional to the square of variable X. When X = 2, Y = 18. What will be the value of Y when X = 3?
- The ratio of the ages of Anil and Bhavna is 5 : 3. If Anil is 12 years older than Bhavna, what is the sum of their present ages?