Question
A Man deposited certain amount in the Bank at the end of
each year. How much amount did he deposited at the end of each year at the rate of 15% simple Interest, so that he will get Rs. 980 at the end of 4th year?Solution
Let the amount be 100 units Interest = 15% 
Total Interest = 45 + 30 + 15 + 0 = 90 Total Amount = 400 + 90 = 490 units 490 units = 980 1 unit = 200 Formula Method :- Formula for Annual Payment/ Annual Income / Annual Installment = (Due Debt ×100)/(100 ×t+ (r × t ×(t-1) )/2) = (980 ×100)/(100 ×4+ (15 × 4 ×(4-1) )/2) = 98000/(400+90) = 200
3/7 Of 504 ÷ 12 + 17 = √?
68% of 450 – 1008 ÷ 14 + 516 ÷ 43 =?
1000÷ 250 = ( 3√? × √1444) ÷ ( 3√512 × √361)
3/7 of 686 + 133(1/3)% of 33 – 69 =?
What will come in the place of question mark (?) in the given expression?
1020 ÷ 51 × 5 + 540 of 25% - 10 = ?2Â
180 ÷ 3 of 2 = 102 – ?
If a nine-digit number 389x6378y is divisible by 72, then the value of √(6x + 7y) will be∶
What will come in the place of question mark (?) in the given expression?
(144 × 16 ÷ 12) × 6 = ?Â
(?)2 = {(26% of 35% of 3000) ÷ 3} × 91
- What will come in place of (?) in the given expression.
625 + 196 – √256 = ?
