Quantitative Aptitude - Arithmetic Ability Questions

Kishan cycled a distance of 120 km at a certain speed. If he cycled 2 km slower every hour, he would have taken 3 more hours to reach his destination. What is the speed in kmph at which Kishan actually cycled?

The average age of 6 members of a family is 20 years. If the age of the servant is included, then the average age increase by 25%. What is the age (in years) of the servant?

The average age of a class of 6 girls is x years. Four new girls having ages x – 2, x + 2, x + 4 and x + 6 joins the class. What is the new average age (in years) of the class?

Value of (4a2+ 12ab + 9b2)/(2a + 3b) is

If 2 T-shirts are offered free on purchase of 5 T-shirts, what is the effective discount (in %) on each T-shirt?

What is the value of 10.2+10.02+10.002+... upto 9 terms

The area of a rectangle in 60 sq.cm and its perimeter is 34 cm, then the length of the diagonal is

If selling price of 39 articles is equal to the cost price of 42 articles, then what will be the profit percentage?