Q1If a:b = 3:4 and b:c = 6:7, then a:c is:

Q2The mean proportional between 4 and 9 is:

Q3Who first rigorously defined proportion theory?

Q4Divide ₹720 in the ratio 3:5. The larger share is:

Q5If y varies inversely as x, and y=6 when x=4, find y when x=12:

Q6In what ratio must rice at ₹40/kg be mixed with rice at ₹60/kg to get a mixture worth ₹52/kg?

Q7A and B start a business with ₹6000 and ₹8000 for 5 and 6 months respectively. Profit ratio = ?

Q8A 60-litre mixture is 80% milk. How much water to add to make it 60% milk?