Question
The average cost price of 25 pens (having equal cost
price) decreased by Rs.4, when one of the pen is replaced by a new pen having cost price of Rs.60. 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 + 60)/25 = x – 4 => 24x + 60 = 25x – 100 => x = 160 Therefore, the cost price of the pen that was replaced is = Rs.160
Select the figure that will come next in the following figure-series. Â
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Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
CDG_ IJ_Z O_SZ _VYZ _BEZ
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...In the following question, select the figure which can be placed at the sign of question mark (?) from the given alternatives.
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All scientists are doctors.
All doctors are engineers.
Conclusions:
I. ...