Quantitative Aptitude (Numerical Ability)

Q. The ages of two friends rames and Rajesh are in the ratio of 4:3. which of the below pieces of information is additionally require to answer what the average age of Ramesh and Rajesh is ?
1) Ramesh is 10 year older than Radha who is the younger sister of Rajesh
2) The age difference between Ramesh's father and Rajesh's mother is 8 years
3) 6 years ago, the ratio of the ages of Ramesh and Rajesh was 3:2
4) Ramesh was 12 years old when Rajesh was in senior kg in his school

Q. A sum was doubled with a 12.5% rate of simple interest, per annum. Then time taken for that sum is -
1) 12.5 years
2) 8 years
3) 8.5 years
4) 10 years

Q. A two-wheeler depreciated at 20% of its value every year. If the present value of the same is ₹ 90000, its depreciation value would be ₹ 36864 after -
1) 4 years
2) 3 years
3) 5 years
4) 6 years

Q. The price of a bicycle is marked by a trader at ₹ 1000. He sold the bicycle allowing successive discounts of 20%, 10%, and 5%. Thus the trader gained 14% then the cost price of bicycle (in rupees) is -
1) 600
2) 560
3) 510
4) 790

Q. A dealer marks his goods 20% above the cost price. He then allows some discount on it and makes a profit of 8%. The rate of discount is -
1) 4%
2) 10%
3) 6%
4) 12%