Quantitative Aptitude - Arithmetic Ability Questions

When a number is increased by 18, it becomes 106% of itself. What is the number?

What is the equation of the line passing through the point (-1,3) and having x-intercept of 4 units?

The sum of the ages of father and son at present is 33. Two years ago the product of their ages was 28. What is the age of the father and the son?

If 1-aa3+9 = 19 - a1-a3, then what is the value of a?

A and B together can complete a work in 24 days. B alone does 1/3rd part ofthis work in 12 days. How many days will A alone take to complete the remaining work?

The reciprocal of the sum of the reciprocals of 2/9 and 7/10 is

One of the diagonal of a rhombus is 70% of the other diagonal. What is the ratio of area of rhombus to the square of the length of the larger diagonal?

Find the odd one out.