Question
A sum of money doubles itself in 4 years in how many
years it will be 5 times?Solution
Sum of money doubles, means interest is same as principal amount, Let Principal = P So, SI = P Amount = P + SI = P + P = 2P => A = P + (PRT/100) => 2P = P + (P×R×4)/100) => 200 = 100 + R × 4 => 100 = R × 4 => R = 25% According to the question, => 5P = P + (P×25×T)/100) => T = 16 years
181/8 + 51/4 – 63/8 = ? + 9/2
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
What will come in the place of question mark (?) in the given expression?
? = 60% of 48% of (20 × 350) + 180
(5832)1/3  × 10.11 × 11.97 ÷ 16.32 = ? + 45.022
What will come in the place of question mark (?) in the given expression?
30% of 50% of 1200 = 18/11 × ?
325934.78 + 78545.30 + 92.25 =?
625 × (?% ÷ 125) = 250% of 10
Find the value of 325 × 5 + 31 × 21 – 22 × (63 − 52).
Simplify the following expression:
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