For the following questions answer them individually
A boat can travel 104 km downstream in 8 hours. If the speed of the stream is 2 km/h, then find in what time will it be able to cover 13 km upstream?
$$72 \div 8 \times \left[\left\{(57 โ 49) \div 2\right\} + \left\{(85 โ 60) \div 5\right\} - \left\{(28 โ 19) \div 3\right\}\right]$$ is equal to:
Two trains start from Delhi and Poona towards each other at 7 a.m. with speeds of 85 km/h and 67km/h, respectively. If they cross each other at 3.30 p.m., the distance between the stations is
If a + b + c = 10 and $$a^{2} + b^{2} + c^{2} = 48$$,then the value of ab + bc + ca is _______.
The following pie chart shows the contribution (in Rs.) of some investors in the corpus fund of a company. If total contribution by these investor is 100%, then what is the percentage contribution of Rakesh in the corpus fund?
Refer to the following table. Read the table and answer the question. Food grain Production in a country in
1999. (in lakh tons)
State P alone produce how much percentage of wheat out of the total wheat production in the country?
A policeman sees a thief at a distance of 150 m. He starts chasing the thief who is running at a speed of 5 m/sec, while the policeman chases with a speed of 7m/sec.Find the distance covered by the thief when he is caught by the policeman.