mera has a housewarming party at her place . she knows that around 40 guests will turn up for the party . calculate the pieces of sweets she has to order so that the guests take home 4 pieces of each . also she 90 lamps available with her. and she wants to use them all by placing them equally on the 20 stairs leading to her house . how many mor lamps does she need to buy
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No. of Pieces of sweets she has to order=No. of guests×each pieces
=40×4=160
No. of lamps required=10
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