Quantitative Aptitude - Arithmetic Ability Questions

At an average of 80 km/hr Shatabdi Express reaches Ranchi from Kolkata in 7 hrs. Then the distance between Kolkata and Ranchi is

A can make a cupboard in 10 days and B can do it in 50 days. Along with C, they did the job in 6.25 days only. Then in how many days C alone can do the job?

The addition of a rational number and its reciprocal is 61/30. Calculate the number.

The value of tan80° tan10° + sin270° + sin20∘

The mean of the data 1, 2, 10, 18, 3, 17, 19 is

The total surface area of a hemisphere is 166.32 sq cm, find its radius?

A and B have their annual average income Rs. 80,000.
B and C have their annual average income Rs. 75,000.
C and A have their annual average income Rs. 78,000.

The annual income of A is ?

If -3/2 + (2/3)(3x + 9) = x/2, then what is the value of x?