Question
The simple interest on a sum of money is 4/25 of the
sum. If the number of years is numerically half the rate per annum, then find the rate percent per annum.Solution
Let P = 25 units and Simple Interest = 4 units T = R/2 SI = (P Γ R Γ T)/100 => 4 = (25 Γ R Γ R)/(100 Γ 2) => R = 5.7%
x = 7 - 4β3 then the value of xΒ³+1/xΒ³ is equal to?
If a3 β b3 = 602 and aβ b = 2, then find the value of( a2 + b2)
- If n = 1 + β2, then find the value of (n + 1/n)Β².
(x β 4)2 + (y + 3) 2 + (z β 5) 2 = 0, then find the value of 2x + 3y β z.
If (528 β 507 + 195) Γ· 11 + β1296 = x, then {(x/2) + 10} = ?
In β ABC, MN β BC, the area of quadrilateral MBCN=130 sqcm. If AN : NC = 4 : 5, then the area of β MAN is:
If βx + (1/βx) = 13, then find the value of x + (1/x).
Solve for x:
3x - 4 = 2x + 5
Β + The coefficient of βb2β in (3a + b)3 is