Question
In a college, the proportion of boys to girls is 7:9,
and the proportion of graduate students to postgraduate students is 4:5. Determine the total number of students, given that the difference between the number of boys and graduate students is 2.Solution
ATQ, Let the total students = 'x' ATQ, x Ă (4/9) - x Ă (7/16) = 2 (64x â 63x)/144 = 2 x = 288
Monthly income of A is Rs. 6000 and he saves 25% of his monthly income. If monthly expenditure of A is decreased by 35% while his monthly savings is inc...
Which of the following mathematical operator are placed in place of alphabet given in the equation to make it true?
54 a 7 c 9 f 45 h 12 j 15
...If x stands for âadditionâ, á stands for âsubtractionâ, + stands for âmultiplicationâ, and â stands for âdivisionâ, then 80 x 54 â...
After interchanging the given two signs and two numbers, what will be the value of the following expression?
á and +; 6 and 25
8 á 42 + ...
Which of the following âsignsâ are placed in place of âsymbolsâ given in the equation to make the equation true?
36 $ 12 % 6 + 8 â 9 @ ...
Study the given pattern carefully and select the number that can replace the question mark (?) in it.
4 7 6
15 ? 21
44 68 60
If '+' means ' - ', ' X ' means '+', ' - ' means 'á' and 'á' means ' X ', then what is the value of the following expression?
14 á 5 x 63 - 9 ...
By interchanging the given two numbers (not digits), which of the following equations will be correct?
24 and 15
I. 113 + 24 - 17 X 1...
If '@' means 'á', '#' means ' X ', '$' means '+' and '%' means '-' then what would be the value of the expression given below?
Expression: 25 # ...
If ‘-’ stands for ‘division’, ‘+’ for ‘multiplication’, ‘÷’ for ‘subtraction&rs...
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