Quantitative Aptitude - Arithmetic Ability Questions

If 4x + 1x = 5, (x≠0), then the value of 5x4x2+10x+1 is

If 6x + 4(2-x) > 3x -2 > 5x/2 - x/4; then value of x is

ABC is a right angled triangle in which ∠A = 90°, AB = 5 cm and AC = 12 cm. What is the approximate volume (in cm3) of the double cone formed by rotating the triangle about its hypotenuse?

When Bablu decreases the selling price of the shoes from Rs. 360 to Rs. 345, his loss increases by 4%. The cost price of the shoes is

If Rajan purchase 21 pens for Rs 20 and sell all the pens at the rate of 20 pens for Rs 21, then what will be the profit percentage?

If a is positive and a2+1a2 = 7, then a3 + 1a3 = ?

ABCD is a parallelogram in which AB = 7 cm, BC = 9 cm and AC = 8 cm. What is the length (in cm) of other diagonal?

In the following question, select the odd letters from the given alternatives.