Question
Raju invests Rs. (p + 200) at a
simple interest rate of 25% per annum for a period of 6 years and earns a total interest of Rs. (2p − 300). What will be the total amount accrued if the same principal amount is invested at a compound interest rate of 50% per annum, compounded annually for 2 years?Solution
ATQ, {(p + 200) × 25 × 6}/100 = (2p – 300) Or, 3p + 600 = 4p – 600 Or, p = 1200 Therefore, sum invested at compound interest = Rs. (p + 200) = Rs. 1400 Required amount received = 1400(1 + 50/100)2 = Rs. 3150 = Rs. (3p – 450)
More Approximation Questions
12.5% of (100 + ?) = 40
2/9 of 5/8 of 3/25 of ? = 40
24 × √? + 4008 ÷ 24 = 40% of 200 + 327
7(1/2) – 3(5/6) = ? − 2(7/12)
280 ÷ 14 + 11 × 12 – 15 × 6 = ?
1550 ÷ 62 + 54.6 x 36 = (? x 10) + (28.5 x 40)
25% of 1000 + 10% of 150 – 22 × ? = 45
√ 729 × 5 – 220 % of 15 + ? = 120% of 160
What will come in the place of question mark (?) in the given expression?
(40% of ? × 43 ) – 232 = 751
180 % of 45 + √144 × 8 = ?2 + 80 % of 70
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