Given: The cost of 10 pencils and 12 pens = Rs. 150
Formula Used: The cost of multiple items is proportional to the number of items.
Solution:
Cost of 30 pencils and 36 pens is three times the cost of 10 pencils and 12 pens. Thus, the cost is: 3 * 150 = 450.
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90 Mins English English100 Questions100 Marks90 Mins English English40 Questions30 Marks25 Mins EnglishThe sum of squares of all the roots of the equation:
is:
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