For the following questions answer them individually
Ritika purchased 'x' kg wheat at Rs.30/kg and sold 8 kg of this at Rs. 'x' per kg and remaining at Rs.45/kg. Overall profit percent earned is 10%, then what quantity of wheat Ritika sold a, Rs.45/kg?
A car moves at the speed of 108 km/hr after repairing and moves at the speed of 72 km/hr before repairing. It covers a distance of x km in 3 hours after repairing. How much time will it take to cover a distance of 5x km before repairing?
The ratio of incomes of P and Q is 1 : 2. Ratio of income of Q and R is 3 : 2. If one-third of P's income is Rs. 4400 less than the half of P's income, then what is the Q's income?
What is the value of $$(2^{2} + 1)(2^{4} + 1)(2^{8} + 1)(2^{16} + 1) ......... (2^{128} + 1)$$?
In an exam, a student got 64 marks and still failed by 20 percent marks. If the passing percentage is 40 percent, then what are the maximum marks of the exam?
In an equilateral triangle, circumradius is 14 cm. What is the length of median in this triangle?
What is the value of the expression 1 - 7 + 2 - 8 + 3 - 9 + 4 - 10 + ........ to 100 terms?
If $$- \sin \theta + \cosec \theta = 6$$, then what is the value of $$\sin\theta + \cosec \theta$$ ?
The line chart given below shows the income and expenditure of a company in five years.
Saving = Income - Expenditure
What is the difference between the average income and average saving in year C and D together?