Quantitative Aptitude - Arithmetic Ability Questions

Sum of twice a fraction and 3 times its reciprocal is 29/3. What is the fraction?

If the radius of a circle is increased by 21%, then its area will increase by what percent?

If the radius of a circle is increased by 31% its area increases by ______.

Rs 11,550 has to be divided between X, Y & Z such that X gets 4/5 of what Y gets and Y gets 2/3 of what Z gets. How much more does Z get over X (in Rs)?

In a trapezium ABCD, AB and DC are parallel sides and ∠ ADC = 90°. If AB = 15 cm, CD = 40 cm and diagonal AC = 41 cm. Then the area of the trapezium ABCD is

The marked price of a helmet is 30% more than its cost price. If the helmet is sold for Rs 744 after a discount of Rs 36, then what will be the profit percentage?

Mehdi can complete a work in 25 hours. If he is joined by Jahnavi who is 50% more efficient, in what time will they together finish the work?

If x+1x=-2,then the value of x7+1x7