Quiz 5

Option (A) Explanation 9.5 for 4th of May.

Option(A) Explanation This ratio depends on the difference between the two temperatures on a single day as well as on the day temperature of the same day. The lower the difference, the higher the ratio. Also, the data given is such that the day temperatures are in the same range, hence the effect of the same on the ratio will be minimal. For solving this question find out the days which need to be checked and compare the ratios between those days only. 4th of May will give the highest ratio required, since the difference is the lowest on that day.

Option (B) Explanation Approximately 40 out of 160 = 25%

 

Option (B) Explanation Visually checking the options, we get 1978 as the answer.

Option (B) Explanation The average speed will be given by the ratio of total distance by the total time. The distance covered in any hour will be given by the average speed of the hour. Distance covered in first hour = (20+0)/2 = 10 km Distance covered in second hour = 20 km/hour = 20 km Distance covered in third hour = (20 + 40)/2 =  30 Distance covered in fourth hour =(40+60)/2 = 50 km Distance covered in fifth hour = (60+50)/2 = 55 km Distance covered in sixth hour = 50 km Distance covered n seventh hour = (50+0) = 25 The required average speed = 240/7 = 34.28 km/hour.

Option (D)

Explanation

Visually clear that the graphs are equal at the ages of 2 and 8 months.

Option (B) Explanation September shows the highest growth and the least initial value. Hence, highest percentage increase.

Option (B) Explanation Add all the values to get 12250.

Option (E) Explanation Reverse the calculation for Question 20 and get 12500 as the total calorie requirement per day.

Option (D) Explanation The two lines run roughly parallel to each other till age of 13, so (d) is correct. After the age of 13, the curves separate out.