Quality knowledge

How to find amount of water flow in one minute ?
4:39
How to find amount of water flow in one minute ?
if area of shaded portion is given, how to find radius of circle.
3:38
if area of shaded portion is given, how to find radius of circle.
[ab^-1]^(2 x - 1) = [b a^-1]^(x - 2) ; x = ?
2:14
[ab^-1]^(2 x - 1) = [b a^-1]^(x - 2) ; x = ?
[(1 - i)/(1+ i)]^n² = 1 ; n = ?
4:33
[(1 - i)/(1+ i)]^n² = 1 ; n = ?
x^y = y^x ; (x/y)^(x/y)
2:26
x^y = y^x ; (x/y)^(x/y)
How to find mean, variance & standard deviation of discrete frequency distribution?
8:07
How to find mean, variance & standard deviation of discrete frequency distribution?
How to find square root of 3.6 ?
3:51
How to find square root of 3.6 ?
which value of x satisfies 5⁵⁶ (1/5)^x (1/5)^-√x is greater than 1?
4:42
which value of x satisfies 5⁵⁶ (1/5)^x (1/5)^-√x is greater than 1?
√ 3 cosec 20° - sec 20° = ?
4:20
√ 3 cosec 20° - sec 20° = ?
Find the arithmetic progression, if there are numbers which product is 2520 and sum is 25 ?
7:05
Find the arithmetic progression, if there are numbers which product is 2520 and sum is 25 ?
x y = 616 ; (x³ - y³)/(x - y)³ = 157/3 ; x + y = ?
5:29
x y = 616 ; (x³ - y³)/(x - y)³ = 157/3 ; x + y = ?
A.P. is 3^(2 sin 2 x -1) , 14 , 3^(4 - 2 sin 2 x) , find the 6 th term of series ?
7:27
A.P. is 3^(2 sin 2 x -1) , 14 , 3^(4 - 2 sin 2 x) , find the 6 th term of series ?
2²⁰⁰ + 2¹⁹² × 31 + 2^n is perfect square of natural number, find the sum of digits of 'n' ?
4:49
2²⁰⁰ + 2¹⁹² × 31 + 2^n is perfect square of natural number, find the sum of digits of 'n' ?
dimensions of brick is l, b,h and diagonals ratio is 3 : 2 √ 3 : √ 15 find h/l = ?
7:37
dimensions of brick is l, b,h and diagonals ratio is 3 : 2 √ 3 : √ 15 find h/l = ?
(3.7)^x = (0.0037)^y = 10000 ; 1/x - 1/y = ?
2:44
(3.7)^x = (0.0037)^y = 10000 ; 1/x - 1/y = ?
(5.55)^x = (0.555)^y = 1000 ; 1/x - 1/y = ?
5:04
(5.55)^x = (0.555)^y = 1000 ; 1/x - 1/y = ?
how to find mean deviation about the mean ?
9:20
how to find mean deviation about the mean ?
x = 12/[7 - 6/{7 - 3/(5 - x)}] ; x = ?
4:32
x = 12/[7 - 6/{7 - 3/(5 - x)}] ; x = ?
How to determine log 31.25 base 10 ?
2:55
How to determine log 31.25 base 10 ?
if 37/13 = [2 + 1/{x +1/(y + 1/z)}] ; x + y + z = ?
3:37
if 37/13 = [2 + 1/{x +1/(y + 1/z)}] ; x + y + z = ?
How to find largest number among √ 2 , 3⅓ , 6⅙
3:28
How to find largest number among √ 2 , 3⅓ , 6⅙
cos 47° + sin 47° = k ; cos² 47° - sin² 47° = ?
4:39
cos 47° + sin 47° = k ; cos² 47° - sin² 47° = ?
if a = 2 + √3 ; a² + a^-2 = ?
1:57
if a = 2 + √3 ; a² + a^-2 = ?
solve the equations a - b = 5 ; a³ - b³ = 335
2:44
solve the equations a - b = 5 ; a³ - b³ = 335
How to solve exponential equation : 3 x^x = 3^(x + 10)
2:49
How to solve exponential equation : 3 x^x = 3^(x + 10)
In right angle triangle tan A + tan B = ? if c² = 61 ; a b = 30 ; if a, b, c are sides.
2:24
In right angle triangle tan A + tan B = ? if c² = 61 ; a b = 30 ; if a, b, c are sides.
How to find the remainder of x²⁰⁰ ÷ x² - 3 x + 2
6:48
How to find the remainder of x²⁰⁰ ÷ x² - 3 x + 2
5^(x - 3) = 8 , find the value of x ?
5:37
5^(x - 3) = 8 , find the value of x ?
How to solve Equations √(x/y) = 10/3 - √(y/x) ; x - y = 8
5:36
How to solve Equations √(x/y) = 10/3 - √(y/x) ; x - y = 8
How to solve logarithmic equation or y ?
6:43
How to solve logarithmic equation or y ?