Euler Method for solving differential equation

Given a differential equation dy/dx = f(x, y) with initial condition y(x0) = y0. Find its approximate solution using Euler method. Euler Method : In… Read More »

Section formula (Point that divides a line in given ratio)

Given two coordinates (x1, y1) and (x2, y2), and m and n, find the co-ordinates that divides that divides the line joining (x1, y1) and… Read More »

Find x and y satisfying ax + by = n

Given a, b and n. Find x and y that satisfies ax + by = n. Print any of the x and y satisfying the… Read More »

QA – Placement Quizzes | Algebra | Question 14

A total of 324 coins of 20 paise and 25 paise make a sum of Rs 71. The number of 25-paise coins is: (A) 104… Read More »

QA – Placement Quizzes | Algebra | Question 13

A zoo has some peacocks and some horses. If the number of heads be 48 and the number of feet be 140, then the number… Read More »

QA – Placement Quizzes | Algebra | Question 12

Find the value of (1-1/3)(1-1/4)(1-1/5)…(1-1/100). (A) 1/10 (B) 1/50 (C) 1/20 (D) 1/100 Answer: (B) Explanation: We have (1-1/3)(1-1/4)(1-1/5)…(1-1/100) = (2/3)(3/4)(4/5)…(99/100) = 2/100 = 1/50.Quiz… Read More »

QA – Placement Quizzes | Algebra | Question 11

If 2x/(1 + 1/(1 + x/(1 – x))) = 1, then find the value of x. (A) 1/3 (B) 2/3 (C) 1/2 (D) 3/2 Answer:… Read More »

QA – Placement Quizzes | Algebra | Question 10

4/15 of 5/7 of a number is greater than 4/9 of 2/5 of the same number by 8. What is half of that number? (A)… Read More »

Aptitude | Algebra | Question 9

If ab+bc+ac = 0, then the value of (A) 6 (B) 2 (C) 3 (D) 0 Answer: (D) Explanation: Put -ac = ab + bc… Read More »

Aptitude | Algebra | Question 8

then y is equal to, (A) 9/4 (B) 7/4 (C) 1/4 (D) 5/4 Answer: (A) Explanation: Now equating power on both side, or orQuiz of… Read More »

Aptitude | Algebra | Question 6

If b2 + 1⁄b2 = 1, then value of b3 + 1⁄b3 is , (A) 0 (B) 6 (C) -4 (D) 4 Answer: (A) Explanation:… Read More »

Aptitude | Algebra | Question 5

if x = (√2 + 1 )–1⁄5 then the value of (x5 – 1⁄x5) is (A) 0 (B) -2 (C) 2 (D) 4 Answer: (B)… Read More »

Aptitude | Algebra | Question 4

If 5√x +12√x =13√x then value of x is, (A) 2 (B) 1 (C) 3 (D) 4 Answer: (D) Explanation: say x=1 17!=13 for, x=2… Read More »

Aptitude | Algebra | Question 3

For any real number x the maximum value of 4−6x−x2 is at x=, (A) 4 (B) 6 (C) -3 (D) 3 Answer: (C) Explanation: Differentiate and equate to 0… Read More »