Question
Find the wrong number in the series given below.
3, 10, 89, 99, 301, 908Solution
3 × 3 + 1 = 10 10 × 3 + 2 = 32 32 × 3 + 3 = 99 99 × 3 + 4 = 301 301 × 3 + 5 = 908 So, 89 is the wrong number.
The cost of a machine is ?18,000 and it depreciates at 16(2/3)% annually. Its value after 2 years will be
Select the number from the given options which will come in place of the question mark (?) in the following series.Â
6, 12, 14, 28, 30, 60, ?
The highest number which divides the product of any three consecutive even natural number is
10 lakh candidates write the TNPSC Exam this year. If each exam centre is allotted with 1000 candidates. How many exam centres would be needed?
A can do a piece of work in 20 days and B can do it in 30 days. How long will they take to do the work together?
Find the LCM of pair of the following polynomials x4 – 27a3 x, (x-3a)², whose GCD is (x-3a)
The value of a motor cycle 2 years ago was ₹ 70,000. It depreciates at the rate of 4% p.a. Find its present value.
The largest four digit number which when divided by 4, 7 and 13 leaves a remainder 3 in each case is
A machine bought at Rs. 50,000 falls in its value by 8% of its value every year. Find the value of the machine after 2 years.
A competitive exam paper has 100 questions for which 1 mark will be awarded for each correct answer and 1/2 mark will be deducted for every wrong answe...
Relevant for Exams:
