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The Rule of 72 is a simplified formula that calculates how long it will take for an investment to double in value (t), based on its rate of return. As per the rule: t ~ 72/rate of interest Here, using the Rule of 72, divide the rate of interest in absolute terms by 72, i.e. 72/12 = 6 years approximately To cross check, if P=100 and r =12% and n=6 A = 100*(1.12)6 = 197.38 which is approximately double the amount of the Principal.
If x + y + z = 6, and x3 + y3 + z3 = 36, xyz = 6 then find (xy +yz + zx)?
If (5x + 2)3 + (x – 1)3 + 8(3x – 7)3 = 6(5x + 2) × (x – 1) × (3x – 7), then the value of (5x + 3) is
...Calculate the value of the expression: {2 X (P3 - Q3) - 30 X P X Q} if (P - Q) = 6 and (P2 + Q2) = 80
If a = 2 + √3, then the value of`(a^(6) + a^(4) + a^(2) + 1)/(a^(3))` is
If (10 a³ + 4b³): (11a³ — 15b³) = 7:5, then (3a + 5b): (9a - 2b) = ?
Find the value of ‘x’ in the given expression:
(49/16)x× (64/343)x-1 = 4/7