Question
Find the fourth proportion of (5k + 5), (10k + 10) and
(15k + 15). (Note: 'k' is the smallest prime number.)Solution
'k' = 2 5k + 5 = 5 × 2 + 5 = 15 10k + 10 = 10 × 2 + 10 = 30 15k + 15 = 15 × 2 + 15 = 45 Let the fourth proportion be 'm'. 15 : 30 :: 45 : m So, 15 × m = 30 × 45 Or, 'm' = 90
If '+' means 'subtraction', ' X ' means 'addition', '-' means 'division' and '÷' means 'multiplication', then what is the value of the following expres...
Select the correct combination of mathematical signs that can sequentially replace the * signs and balance the given equation.
48 * 14 * 7 * 11 * 4 = 89
Select the correct combination of mathematical signs that can sequentially replace ‘*’ sign and balance the equation given below.
42 * 18 ...
After interchanging the given two signs, what will be the value of the given equation?
- and X
144 + 216 ÷ 8 - 12 X 175 + 34
What will be the value of expression if the numbers (13) and (91) are interchanged?
48 - 35 + 13 ÷ 91 + 4 × 8
Select the correct combination of mathematical signs that can sequentially replace the * signs and balance the equation.
32 * 8 * 55 * 42 * 7 * 305
If '+' means ' - ', ' X ' means '+', ' - ' means '÷' and '÷' means ' X ', then what is the value of the following expression?
32 ÷ 8 X 117 - 1...
In an imaginary mathematical system, symbol ‘@’ stands for addition, ‘$’ stands for division, ‘&’ stands for subtraction, and ‘#’ stands...
What will be the value of expression if the numbers/digits ‘(30)’ and ‘(13)’ are interchanged?
78 ÷ 30 × 6 + 13 - 14 + 12
...Which among the given operators should replace the “%” (in the same order) in the given expression below:
8 % 13 % 8 % 69 % 36 % 9
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