Following chart shows marks obtained by students in Geography examination. If distinction is awarded for 80 or above marks, find the number of students who got distinction in the exam.

Following figure shows fruits in a basket at Dasha's house. Dasha is getting late for school, and just picks a fruit from the basket without looking at it. Which fruit is most likely to be picked ?

Dasha sells her two cars at the rate of € 1 lacs each. On one car she gains 7% while on other car she incurs a loss of 7%. Find her total loss/gain in whole transaction.

The three fourth part of a cylindrical vessel of radius 7 cm and height 2 cm is filled with water. Find the volume of water in the vessel. (Assume π = 22/7)

Train X takes 45 hours to travel from station A to station B, while train Y takes 36 hours to travel from station B to station A. If train X and Y starts at same time from stations A and B respectively, after what time will they cross each other? (Assume trains travel with uniform speed)

The graph shows the temperature forecast and the actual temperature of a city on ten days. Find the maximum deviation of actual temperature from the forecast.

{a_{m}} is a sequence of integers such that a_{1} = 1, and and a_{m+n} = a_{m} + a_{n} + mn, for all positive integers m and n. What is the value of a_{10}?