For the following questions answer them individually
A person can row 88 km downstream in 11 h, and 72 km upstream in 12 h. What is the speed of the current?
Suman buys 40 kg of wheat at Rs.12.50/kg and 30 kg of wheat at Rs.14/kg. At what rate per kg should he sell the mixture to gain 5% on the whole?
Kapil and Prakash together can do a piece of work in 45 days. Prakash and Pihu together can do it in 60 days. Kapil and Pihu together can do it in 60 days. In how many days will Kapil, Prakash and Pihu finish it together?
A cylindrical tank has a capacity of 5631 $$cm^{3}$$. If the diameter of its base is 8 m. What is the depth of the cylindrical tank? (Use $$\pi = \frac{22}{7}$$)
The weight of a baby is increased from 3.2 kg to 6 kg in 3 months. The percent increase in weight of the baby is:
Munaf and Surya start simultaneously at the same point on a circular track and run along the track in the same direction. The point on the track at which they meet for the $$31^{st}$$ time is the same as that at which they meet for the $$43^{rd}$$ time. If the ratio of the speed of the faster boy to that of the slower one is n : 1, where ‘n’ is a natural number, which of the following is NOT a possible value of ‘n’?
In an election between two candidates, one who gets 64% of the votes polled is elected by a majority of 4,340 votes. What is the total number of votes polled? (considering that all the polled votes are valid)
Shashi buys an old refrigerator for ₹12,000 and spends ₹1,000 on its repairs. If he sells the refrigerator for ₹15,000, then his gain percentage is:
The average of 9 numbers is 15. If the average of the first five numbers is 13 and the average of the last five numbers is 17, then what is the fifth number?
