7th Standard English Medium Maths Subject Term 3 Book Back 3 Mark Questions with Solution Part - II

7th Standard

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Maths

Time : 01:00:00 Hrs
Total Marks : 75

    3 Marks

    25 x 3 = 75
  1. Round 2.367 to the nearest whole number.

  2. Round 52.6583 upto 2 places of decimal

  3. The length and breadth of a rectangle is 23.5 cm and 1.5 cm respectively. Find the area of the rectangle.

  4. A concessional entrance ticket for students to visit a zoo is Rs. 12.50. How much has to be paid for 20 tickets?

  5. Convert \(\cfrac { 7 }{ 4 } \) to percent.

  6. Convert the fraction \(\cfrac { 23 }{ 30 } \) as per cent.

  7. Write the following percentage into fraction. \(\cfrac { 15 }{ 10 } \%\)

  8. In a survey one out of five people said they preferred a particular brand of soap. Convert it into percentage?

  9. In a class of 50 students if 28 are girls and 22 are boys then express boys and girls in percentage.

  10. There are 50 students in a class. If 14% are absent on a particular day, find the number of students present in the class.

  11. An alloy contains 26% of copper. What quantity of alloy is required to get 260g of copper?

  12. A family cleans a house for pongal celebration by dividing the work in the ratio 1:2:3. Express each portion of work as percentage.

  13. The number of literate persons in a city increased from 5 lakhs to 8 lakhs in 5 years. What is the percentage of increase?

  14. A T-shirt bought for Rs. 110 is sold at Rs.90.Find the loss percentage.

  15. Simplify the following using the identity (x + a)(x + b)= x2 + x(a + b) + ab :
    (i) (x + 3)(x + 5)
    (ii) (y + 8)(y + 6)
    (iii) 43 x 36

  16. Using the identity (a−b)2 = a2 −2ab + b2 , simplify the following:
    (i) (3x - 5y)2
    (ii) 472

  17. Express the following algebraic expressions as the product of its factors:
    (i) ab2
    (ii) -3pq3
    (iii) 12m2n2 p

  18. Factorise 9x2 + 30xy + 25y2

  19. Factorise: x2 − 2xy + y2 −z2

  20. Using the identity (x + a)(x + b) = x2 + x(a + b) + ab , find the following product.
    (6a + 9)(6a − 5)

  21. Using the identity (x +a )(x + b) = x2 + x(a + b) + ab , find the following product.
    (8 + pq)(pq + 7)

  22. Expand the following squares, using suitable identities.
    (b - 7)2

  23. Expand the following squares, using suitable identities.
    (xyz - 1)2

  24. Find the median of the following golf scores.
    68, 79, 78, 65, 75, 70, 73.

  25. Find the Median of the following data. 12, 7, 23, 14, 19, 10, 5, 26

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