Algebra questions with answers
36 multiple-choice questions. Open any question for its answer and explanation.
- The average of 7 numbers is The average of first three of them is 20, while the average of last three is The remaining number is
- The following table gives the annual profit of a company (in lakh rupees) 2008-09 2009-10 2010-11 2011-12 2012-13590 620 656 690 726The period which has maximum percent increase in profit over previous period
- Three years ago, the average age of X and Y was 18 years. With X joining them, this average age became 22 years. What was the age of 'Z' ?
- The mean or a, b, c, d is If A = a - 5, B = b -10, C = c - 25 and D = d - 40, then the mean of A, B, C, D is
- Which one of the following is same as 30% of 40% of 560 ?
- The smallest number x, such that the LCM of 15, 20, x is 180, is
- What is the sum of numbers 2°, 3° and 4°?
- If the sum of two numbers is 100 and their difference is 50, the ratio of the two numbers will be
- Four years ago, the average age of a family of four persons was 18 years. During this period, a baby was born. Today if the average age of the family is still 18 years, the age of the baby is
- Missing number of the series (?) l,3,7,..?.,31,...?..are
- If the average of 10% of a number, 25% of that number, 50 % of that number and 75% of that number is 24, then the number will be