Question
The total strength of school A is 40% more than that of
school B. In school A and B, out of total number of students, 10% and 30% respectively are girls. The number of boys in school A is how much percent more/less than that in school B?Solution
Let the total number of students in school B be ‘x’. Therefore, total number of students in school A = 1.4x Number of boys in school A = 0.90 × 1.4x = 1.26x Number of boys in school B = 0.7x Required % = [(1.26x – 0.7x)/0.7x] × 100 = 80%
If ‘÷’ means ‘-’, ‘-’ mean ‘+’, ‘+’ means ‘×’ and ‘×’ means ‘÷’, compute the value of the expression:
130 × ...
- If '+' means '-', ' X ' means '+', '-' means '÷' and '÷' means ' X ', then what is the value of the following expression?
32 ÷ 5 X 184 - 8 + 78 If % means +, @ means -, # means × and $ means ÷, then what is the value of : 26 % 40 @ 56 $ 7 # 2
After interchanging the given two signs, what will be the value of the given equation?
- and X
144 + 216 ÷ 8 - 12 X 175 + 34
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 come in place of ‘?’ in the given expression?
13 × 11 + 12² + 27 × (2/3) = ?
What will come in place of the question mark (?) in the following equation, if '+' and '−' are interchanged and also '×' and '÷' are interchanged?...
If × stands for 'addition', ÷ stands for 'subtraction', + stands for 'multiplication' and - stands for 'division', then 31 × 18 ÷ 20 - 5 + 9 = ?
Select the correct combination of mathematical signs to replace the '@' signs and balance the given equation.
22 @ 6 @ 18 @ 17 @ 2
If ‘-‘ stands for division ‘+’ stands for subtraction ‘÷’ stands for multiplication ‘×’ stands for addition, then which one of the fol...
Relevant for Exams:
