Which of the following is not correctly matched?

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?

If a/b = 3/5, b/c = 4/7 then a:b:c is

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

The cost of a machine is ?18,000 and it depreciates at 16(2/3)% annually. Its value after 2 years will be

Find the LCM of pair of the following polynomials x⁴ – 27a³ x, (x-3a)², whose GCD is (x-3a)

The curved surface area of a right circular cone of height 15 cm and base diameter 16 cm is

Find the missing number

2, 4, 12, 48, 240, .....

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.