Question
What is 'two-factor authentication'
(2FA)?Solution
2FA combines two of three categories — something you know (password/PIN), something you have (OTP/token/smart card), something you are (biometrics). RBI mandates 2FA for all internet banking transactions in India. An OTP sent to a registered mobile after password entry is the classic bank example.
A sum of ₹8,500 amounts to ₹11,900 in 5 years at simple interest per annum. If the rate of interest is increased by 3%, then the increased amount fo...
Manoj deposited a sum of money in a scheme that offers 10% annual compound interest for a period of three years. If the total interest he earned at the ...
A sum of money amounts to Rs 9,200 in 3 years at 5% simple interest per annum. Find the interest earned .
An amount becomes 2.5 times itself in 15 years at a simple interest rate of r% per annum. Find r.
Find the simple interest on Rs 6000 at 8% per annum for 2.5 years.
Arjun borrowed Rs. 5000 at R% S.I. and Rs. 6000 at (R + 5)% S.I. for 2 years. The total interest paid was Rs. 2800. Find the rate at which he borrowed R...
- Calculate the total return on Rs. 60,000 invested for 2 years at 15% p.a. simple interest.
What sum of money must be given at simple interest for 3 months at 5% per annum in order to earn Rs. 220 interest?
- A sum of Rs. 20000 earns compound interest at 9% per annum, compounded half yearly. Find the total interest at the end of one year.
- Sohan invested Rs. 11,600 at a simple interest rate of 7.5% per annum for 3.5 years. What will be the total amount he receives after the period?
Relevant for Exams:
