Quantitative Aptitude - Arithmetic Ability Questions

ax + 5y = 8 has slope of -4/3. What is the value of a?

The profit earned by a shopkeeper by selling a bucket at a gain of 8% is Rs 28 more than when he sells it at a loss of 8%. The cost price (in Rupees) of the bucket is

Ehsaan is twice as good a worker as Kamal and together they finish a piece of work in 29 days. In how many days will Kamal, working alone, finish the work?

The ratio of selling price to the cost price is 13 : 17. What is the loss percentage?

The average of 6 consecutive integers is 15/2. What is the average of last three integers?

Simple interest on a sum for 12 months at the rate of 25% per annum is Rs 935.What is the value (in Rs) of sum?

Direction: What should come in the place of question mark (?) in the following number series? 24, 25, ?, 41, -8, 73

What approximate value should come in place of the question mark (?) in the following questions? (You are not expected to calculate the exact value.)

21.003 × 39.998 –209.91 = 126× ?