Question
A person invested ₹15,000 at a simple interest rate of
20% per annum. Had the amount been invested at a compound interest rate of 20% per annum, compounded annually, how much additional interest would he have earned after 2 years?Solution
Simple interest = Sum X (rate of interest/100) X (time in years) Simple interest earned in two years = 15000 X (20/100) X 2 = Rs. 6,000 And compound interest earned in two years: = 15000 X {1 + (20/100) }2 - 15000 = Rs. 6,600 So, required difference = 6600 - 6000 = Rs. 600
What value should come in place of the question mark (?) in the following question?
2048 ÷ 16 + 256 × 2 − 180
...What will come in the place of question mark (?) in the given expression?
55% of 1600 – (18 × 50) = ? ÷ 16
Evaluate: 18 ÷ 3 × 4 + 6 − 5
18, 25, 33, 42, 52, 63, ?
√(24 × 5 ÷ ?) × 4 = 56 + 34 – 10
25% of 1600 – 152 = ? × 5
89 ÷ 512 × (1/64) = (23)?
What will come in the place of question mark (?) in the given expression?
? = {1026 ÷ 54 + 17 × 13 – (384 ÷ 24)}
?% of 320 - 69 = 123
520% of 360 – 12% of 400 = ? x 4
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