Question
In a regular polygon, each interior angle is 9 times its
exterior angle. The number of sides of the polygon is:Solution
Let exterior angle = x Then interior angle = 9x We know: Interior angle + exterior angle = 180 9x + x = 180 10x = 180 x = 18 Number of sides = 360/18 = 20
If 'A % B' means 'A + B', 'A # B' means 'A X B', 'A @ B' means 'A - B' and 'A $ B' means 'A ÷ B', then what is the value of the expression ‘13 # 19 %...
If '+' means '-', '×' means '+', '-' means '÷', and '÷' means '×', then what is the value of the expression ' 100 - 10 + 30 × 5 ÷ 2 × 10' ?
...In the following question, select the word which can be formed using the letters of the given word.
SANDALWOOD
A recent survey of married couples in Indian metro cities showed that 20% of the couples have only one child, 45% of the remaining couples have two chil...
If ‘÷’ means ‘-’, ‘-’ mean ‘+’, ‘+’ means ‘×’ and ‘×’ means ‘÷’, compute the value of the expression:
135 × ...
If A # B means A - B, A @ B means A ÷ B, A * B means A + B and A % B means A X B, then what is the value of ‘140 @ 28 * 22 % 4 # 30?
If, 'A $ B' means 'A + B', 'A & B' means 'A ÷ B', 'A % B' means 'A X B' and 'A # B' means 'A - B', then what is the value of the given equation?
What will be the value of expression if the numbers/digits ‘(20)’ and ‘(50)’ are interchanged?
20 - 32 ÷ 4 × 5 + 15 + 50
...Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation.
[(345 + 255) ÷ 30 X 12 ...
If '%' means (+), '#' means (-), '@' means ( X ), and '&' means (÷), then what is the value of the expression given below?
80 % 210 & 7 @ 9 # 124...
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