Question
Which type of encryption uses the same key for both
encryption and decryption?Solution
Symmetric encryption uses the same key for both encryption and decryption of data.
A sum of money lent at 5% rate of simple interest. The difference between interest for 6 years and 4 years is Rs. 2000. Find the principal amount.
- A man invested Rs. ‘x’ in Plan A and Rs. ‘x/2’ in Plan B. Plan A offers 4% p.a. and Plan B offers 7% p.a. simple interest. If after 3 years, the to...
A sum of money lent at compound interest at the rate of 30% per annum is paid back in three equal annual installments of Rs.4394. Find the sum of money?
Find the rate of simple interest at which Rs. 8000 should be invested for 2 years so that the interest earned will be same as the interest received when...
Rs. (y-1500) was invested in scheme J on (R-1)% per annum on compound interest. Rs. ‘y’ was invested in scheme K on (R+1)% per annum on simple inter...
There is 40% increase in an amount in 8 years at simple interest. What will be the compound interest of Rs. 16,000 after 3 years at the same rate?
Vikram invested Rs. 2400 at R% p.a. simple interest for 4 years and Rs. 800 at (R + 9)% p.a. simple interest for 8 years. If the total interest earned e...
What annual installment will clear a debt of ₹4,500 due in 5 years at 8% p.a. simple interest?
Same amounts are invested in two schemes with 8% interest for 2 years, one scheme at S.I. and another scheme at CI. If he received Rs. 41875.2 after 2 ...
- A person deposits Rs. ‘x’ in savings scheme A and Rs. ‘x/2’ in scheme B. The interest rates are 7% p.a. and 6% p.a. respectively. If after 3 years ...
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