ЁЯУв Too many exams? DonтАЩt know which one suits you best? Book Your Free Expert ЁЯСЙ call Now!


    Question

    A cuboidal water tank has dimensions (20 ├Ч 14 ├Ч 12) cm

    and is open from the top. If painting the outer surface costs Rs. 5 per cm┬▓, find the total painting cost.
    A Rs.4,480 Correct Answer Incorrect Answer
    B Rs.5,480 Correct Answer Incorrect Answer
    C Rs.5,080 Correct Answer Incorrect Answer
    D Rs.3,480 Correct Answer Incorrect Answer

    Solution

    ATQ, Area to be painted = lateral surface area + area of base = 2 ├Ч (length + breadth) ├Ч height + length ├Ч breadth = 2 ├Ч (20 + 14) ├Ч 12 + 20 ├Ч 14 = 2 ├Ч 34 ├Ч 12 + 280 = 816 + 280 = 1,096 cm┬▓ Required cost = 1,096 ├Ч 5 = Rs. 5,480

    Practice Next
    More Mensuration Questions
    ask-question