# CBSE Class 7 Mathematics Worksheets/Part 4/Yearly Examination.

**CBSE Class 7 Mathematics Worksheets is about some model questions that you can expect for yearly examination. Here you can find out practice problems for class 7 Mathematics.**

**CBSE CLASS 7 MATHEMATICS WORKSHEETS/Part 4 / Yearly Examinations.Fill in the blanks:**

- The ratio of 9m to 27 cm is —————
- Percentages are numerators of fractions with denominator ————
- 0.09 = ———-%
- The number —– is neither a positive nor a negative rational number.
- The circumference of a circle is always more than ——- times its diameter.
**Answer the following:** - Out of 25 children in a class, 15 are girls, what is the percentage of girls?
- 7000 rupees is borrowed at 3.5% rate of interest p.a. borrowed for 2 years. Find the amount to be paid at the end of second year?
- Give four rational numbers equivalent to -3/5
- Find the value of 7a – 4b for a = 3, b =2
- State with reasons, which of the following pairs of terms are of like terms and which are of unlike terms:

i) 7x, 12y

ii) 15x, -21x

iii) -4ab, 7ba

iv) 3xy, 3x

**ANSWERS:**

- 100:3
- 100
- 9%
- 0
- Three
- Out of 25 children, there are 15 girls.

Therefore, percentage of girls = (15/25) x 100 = 60

There are 60% girls in the class - Given P = 7000, R = 3.5%, T = 2 years

Interest I = PRT/100 = 7000 x 3.5 x 2/100 = 490

Amount to be paid at the end of 2 years = 7000 + 490 = 7490 rupees - By multiplying the numerator and denominator of a rational number by the same non zero integer, we obtain another rational number equivalent to the given rational number.

So the equivalent rational numbers are -3/5, -6/10, -9/15, -12/20, -15/25. - 7a – 4b, we get

7a – 4b = 7 x 3 – 4 x 2 = 21 – 8 = 13 - i) Algebraic factors are different and the variables in the terms are different. So the terms are unlike.

ii) Algebraic factors are same and the variables in the terms are same. So the terms are like terms.

iii) Algebraic factors are same and the variables in the terms are same. Remember ab = ba, so the terms are like.

iv) Algebraic factors are different and the variable y is only in one term. So the terms are unlike.