hamburger menu
All Coursesall course arrow
adda247
reward-icon
adda247
    arrow
    arrow
    arrow
    An object is in the form of a trapezium with height 5 m and parallel sides being 4 m and 6 m. What is the cost of painting the object if the rate of p
    Question

    An object is in the form of a trapezium with height 5 m and parallel sides being 4 m and 6 m. What is the cost of painting the object if the rate of painting is ₹50 per square metre.

    A.

    ₹1,000/-

    B.

    ₹1,250/-

    C.

    ₹1,200/-

    D.

    ₹800/-

    Correct option is B

    Given:

    Shape: Trapezium

    Height (h): 5 m

    Parallel sides (a and b): 4 m and 6 m

    Painting rate: ₹50 per square metre

    Formula Used:

    Area of a Trapezium =12×(a+b)×h \frac{1}{2} \times (a + b) \times h​​

    Total Cost =Area×Rate per square metre \text{Area} \times \text{Rate per square metre}​​

    Solution:

    Area = 12×(4 m+6 m)×5 m=12×10 m×5 m=25 m2\frac{1}{2} \times (4\,\text{m} + 6\,\text{m}) \times 5\,\text{m} = \frac{1}{2} \times 10\,\text{m} \times 5\,\text{m} = 25\,\text{m}^2​​

    Total Cost =25 m2×50/m2=1250= 25\,\text{m}^2 \times ₹50/\text{m}^2 = ₹1250​​

    Free Tests

    Free
    Must Attempt

    RRB NTPC UG Level PYP (Held on 7 Aug 2025 S1)

    languageIcon English
    • pdpQsnIcon100 Questions
    • pdpsheetsIcon100 Marks
    • timerIcon90 Mins
    languageIcon English
    Free
    Must Attempt

    CBT-1 Full Mock Test 1

    languageIcon English
    • pdpQsnIcon100 Questions
    • pdpsheetsIcon100 Marks
    • timerIcon90 Mins
    languageIcon English
    Free
    Must Attempt

    RRB Group D Full Mock Test 1

    languageIcon English
    • pdpQsnIcon100 Questions
    • pdpsheetsIcon100 Marks
    • timerIcon90 Mins
    languageIcon English

    Similar Questions

    test-prime-package

    Access ‘RRB NTPC’ Mock Tests with

    • 60000+ Mocks and Previous Year Papers
    • Unlimited Re-Attempts
    • Personalised Report Card
    • 500% Refund on Final Selection
    • Largest Community
    students-icon
    420k+ students have already unlocked exclusive benefits with Test Prime!
    Our Plans
    Monthsup-arrow