Let S be the sample space. Then, N(S) = number of ways of drawing 3 pens out of 11 = ¹¹C₃ = (11 ×10 ×9)/(3 ×2 ×1) = 165 Let E = event of getting 3 from 5 black pens. n(E) = ⁵C₃ = (5 × 4 )/(2 ×1) = 10 n(P) = (n(E))/(n(S)) = 10/165 = 2/33
Study the following figures and find out the number opposite to 3.
Three positions of a dice are given below. According to these three positions, what will can in the place of ‘?’.
Choose the cube that will be formed by folding the sheet of paper shown in the problem figure.
A dice with six faces is marked with six numbers 1, 2, 3, 4, 5 and 6 respectively. This dice is rolled three times and three positions are shown as:
A cube is made by folding the given sheet. In the cube so formed, which if the following pairs of symbols will not be on opposite sides?
Three positions of a cube ae shown below. What will come opposite to face containing ‘X’?
Two positions of a dice are given below. What will come on the face opposite to the face containing 'F' on it?
Four positions of dice are given below. Which letter will be opposite to D?
Three positions of a cube are given. Based on them find out which number is found opposite of number 2 in a given cube?
Three different positions of the same dice are shown. Find the number on the face opposite the face showing ‘4’.
