Find the number of ways of selecting 8 subjects from 12 subjects for an examination

Assessment: JAMB UTME - Mathematics - 2001 Subject: General Mathematics

Question 1 Report

Find the number of ways of selecting 8 subjects from 12 subjects for an examination
Answer Details
This question is asking us to find the number of ways to select 8 subjects out of 12 subjects. This is a combination problem since the order in which the subjects are selected does not matter. The formula for combination is nCr = n!/r!(n-r)!, where n is the total number of items, r is the number of items to be selected, and ! represents the factorial function. Applying this formula to the given problem, we have: 12C8 = 12!/8!(12-8)! = (12x11x10x9)/(4x3x2x1) = 495 Therefore, there are 495 ways of selecting 8 subjects out of 12 subjects. Hence, the correct option is 495.
Read lesson note on Permutation And Combination (JAMB)
View Answer

Related Questions

1

Evaluate ∫2(2x-3)2/3dx
2

Differentiate (2x+5)2(x-4) with respect to x.
3

A cylindrical tank has a capacity of 3080 m3. What is the depth of the tank if the diameter of its base is 14 m? (Take pi = 22/7)
4

The chord ST of a circle is equal to the radius, r, of the circle. Find the length of arc ST.
5

Find the locus of a point which moves such that its distance from the line y = 4 is a constant, k.
6

If the gradient of the curve y = 2kx2 + x + 1 at x = 1 is 9, find k.
7

P(-6, 1) and Q(6, 6) are the two ends of the diameter of a given circle. Calculate the radius.
8

The bearings of P and Q from a common point N are 020° and 300° respectively. If P and Q are also equidistant from N, find the bearing of P from Q.

Download The App On Google Playstore

Everything you need to excel in your exams

Green Bridge CBT Mobile App
Personalized AI Learning Chat Assistant
200,000+ Exam Questions Across IGCSE, JAMB, WAEC & NECO
Over 3,900 Lesson Notes
Offline Support - Learn Anytime, Anywhere
Green Bridge Timetable
Literature Summaries & Potential Questions
Track Your Performance & Progress
In-depth Explanations for Comprehensive Learning