Question
There are 75 students in the hostel. Due to new
admissions, 15 new students join the mess, and the daily expenses of the mess increased by ₹240, while the average expenditure per head diminished by ₹5. What was the original expenditure (in ₹) of the mess?Solution
Let the average expense per day be x. Total expense = 75x After the admission of 15 more students, Total Expense = 75x + 240 Average Expense = x - 5 According to the question, 90(x -5) = 75x + 240 90x-450=75x+240 15x = 690 75x = 3450 Original Expenditure = Rs. 3450 Â Required answer is Rs. 3450
Select the number from among the given options that can replace the question mark (?) in the following series.
16, 35, ?, 217, 653, 1309
What will come in place of the question mark (?) in the following equation if ‘+’ and ‘÷’ are interchanged and ‘×’ and ‘–’ are inter...
Two statements are followed by two conclusions numbered I and II. Assuming the statements to be true even if they do not conform to real-world knowledg...
In a certain code, SEAMINGLY is written as RDZLHMFKX. How BEAUTIFUL can be written in that code?Â
In a certain code language, ‘strong and mighty’ is written as ‘ui yv tk’ and ‘soft yet strong’ is written as ‘hd tk bw’. How is ‘stron...
Choose the next number in the series.
25, 41, 73, 89, 121,?
From the given options, select the option that can create a full square. (None of the 5 pictures given)
In a certain code language, CABLE is coded as 65@7#, and PARKLET is coded as 85917#2. How will ELRAP be coded in that language?
Select the set in which the numbers are related in the same way as are the numbers of the following sets. (NOTE: Operations should be performed on the w...
If 'L' means '×', 'M' means '-', 'N' means '+', and 'O' means '÷', then what will be the value of the following expression?
6 L 25 M 15 N 45 O ...
Relevant for Exams:
