Quantitative Aptitude - Arithmetic Ability Questions

At 15% discount the selling price of a microwave oven is Rs 34000, what is the selling price if the discount is 37.5%?

When a number is increased by 24, it becomes 110% of itself. What is the number?

Rs. 782 is divided into 3 parts in the ratio 12:23:34, the first part is 

Prahlad has done 1/3rd of a job in 30 days, Sarfaraz completes the rest of the job in 90 days. In how many days can they together do the job?

A vendor buys some bananas at the rate of 2 for Re 1 and sells at the rate of 10 for Rs 7. What will be the result?

What is the LCM of 64 and 56?

If x/y = 4/9, then what is the value of (7x2 – 19xy + 11y2)/y2 ?

If a2+b2+c2=83and a+b+c=15 then the value of ab+bc+ca is