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United Commercial Bank Ltd. || Probationary Officer (19-11-2021) || 2021

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Mathematical problem solving (you must show your steps of calculation)
1.

Mr. Salam has an open terrace adjacent to his apartment where his children play football. To protect the children from falling, Mr. Salam wants to put up railing around three sides of his rectangular terrace and leave a side of 20 feet untended as that side is covered by his apartment and needs no railing. If the terrace has an area of 680 square feet, how many feet. how many feet of railing does he need?
Created: 6 months ago | Updated: 23 hours ago

Let us depict a picture according to the question Here, AB is the adjacent part of the appartment. Here, AB = 20 feet and Let, BC = x feet According to the question x×20=680 ∴x=68020=34 Required railing = BC + CD + DA =34+20+34= 88 feet.

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