Quantitative Aptitude - Arithmetic Ability Questions

If Sin4A - Cos4A = 1 then (A/2) in degrees is 0° < A ≤ 90°

The angles of elevation of top and bottom of a flag kept on a flag post from 30 metres distance, are 45 and 30 deg respectively. Height of the flag is [taking √3 = 1.732]

Select the odd word from the given alternatives.

The perimeter and the breadth of a rectangle are 82 cm and 20 cm respectively. Calculate the length of its diagonal (in cm).

If 1+121+141+161+181-131-151-17 = 1+ 1x, then what is the value of x?

When a number is increased by 42, it becomes 121% of itself. What is the number?

The diameter of a circle is equal to the side of the square. What is the area of the square if the area of the circle is 49π sq cm?

Which among the following is true for the given numbers?