CDS Model Paper 3 Mathematics

Let the original price of a screw driver and a hammer be ₹ 100 each.
Then, price of 3 screw drivers and 3 hammers =₹600 Now, after increase of 5%, the price of 3 screw drivers =₹315
And after 3% increase the price of 3 hammers =₹309
Increased price of 3 hammers and 3 screw drivers =₹624
Therefore, % increase in price
=

624−600

600

×100=

24

600

×100=4%