For the following questions answer them individually
A retailer bought 250 kg of a cereal and sold it at a profit to the extent of what he paid for 160 kg. What is his profit percentage?
The father of a girl is three years older than his mother. Six years ago, the average age of the girl and her parents was 32 years, and the age of the father was twice the present age of his daughter. What is the present age (in years) of the mother?
The ratio of two numbers is 4:5. If one is subtracted from the first number, and two is added to the second number, then the ratio becomes 3:4. What will be the ration when eight and four are, respectively, added to the first and second number ?
The value of $$120\div [\frac{2}{3}\times(1-\frac{2}{5})\times5]+[\frac{9}{8}of\frac{4}{3}\div\frac{3}{4}of\frac{2}{3}]$$ is:
Study the pie chart and answer the question that follows.
The number of people applying for a passport from a city was monitored, and it was found that the numbers (in multiples of hundred) during the first five months of 2019 were as follows: January (M1)-248, February (M2)-134, March (M3)-162, April (M4)-94, May (M5)-72. These have been represented through the given pie chart.
The number of people in M5 is what percentage (correct up to two decimal places) of that of the two months M3 and M4 combined?
The average of ten numbers is A. If c is subtracted from each number, except the tenth, and (c-1) is suntracted from the tenth number, then what will be the new average?
The total surface are of a hemisphere is very nearly equal to that of an equilateral triangle. The side of the triangle is how many times (approximately) of the radius of the hemisphere?
Two cyclists start simultaneously from two points A and B, their destinations being B and A, respectively. After crossing each other, they precisely take 2 hours 33 minutes 36 seconds and 1 hour 26 minutes 24 seconds respectively to reach their destinations. What is the ratio of the speed of the first to that of the second cyclist?
By what percentage is the percentage of the number of vowels in the word CONSTANT less than the percentage of constants in it?