Question
The average cost price of 25 pens (having equal cost
price) decreased by Rs.2, when one of the pen is replaced by a new pen having cost price of Rs.40. Find the cost price of the pen that was replaced.Solution
Let the cost price of each pen be Rs.x So, cost price of 25 pens = Rs.25x According to the question, => (25x – x + 40)/25 = x – 2 => 24x + 40 = 25x – 50 => x = 90 Therefore, the cost price of the pen that was replaced is = Rs.90
In the following question, select the related word from the given alternatives.
BURIED : SNGCZX :: LEGAL : ?
Select the option that is related to the third word in the same way as the second word is related to the first word.
Brave : Coward :: Honest : ?
If D = 12, AGE = 39, then ‘JADE’ will be equal to?
If 42 @ 21 = 18' and 35 @ 27 = 18', then 46 @ 32 = ?'. What will come in place of question mark?
8, 20, 48, 108, 232, 482
- Select the option that is related to the third term in the same way as the second term is related to first term and the sixth term is related to the Fifth ...
Select the set in which the numbers are related in the same way as are the numbers of the following set. (NOTE: Operations should be performed on the wh...
Select the option that is related to third letter cluster in the same way second letter cluster is related to first letter cluster.
REASON: WVF...
Select the related number from the given alternatives.
42 : 12 :: 96 : ?
- Select the set in which the numbers are related in the same way as are the numbers of the following set.
(9, 11, 40)
(15, 7, 176)
Relevant for Exams:
