Quantitative Aptitude - Arithmetic Ability Questions

cos3A is equal to

In the given figure, 3 semicircles are drawn on three sides of triangle ABC. Ab = 21 cm, BC = 28 cm and AC = 35 cm. What is the area (in sq.cm) of the shaded part?

If secA - tanA = x, then the value of x is

What is the average of first 93 natural numbers?

A mixture is composed of 11 parts of pure milk and 2 parts of water. If 35 litres of water were added to the mixture then the new mixture will contain twice as much pure milk as water, then how many litres of pure milk does the original mixture contain?

The ratio of the ages of two boys is 3:4. After 3 years, the ratio will be 4:5.The ratio of their ages after 21 years will be

Eshan's birthday is on Friday 10th March. On what day of the week will be Shlok's Birthday in the same year if Shlok was born on 25th September?

Aayush's birthday is on Monday 22nd May. On what day of the week will be Neerav's Birthday in the same year if Neerav was born on 30th October?