**7th grade math worksheet 8 :**

Here we are going to see 10 practice questions of mixed topics. We have been preparing this set of questions in order to test how you understood the topics.

**Question 1 :**

The unit digit of 13^{17} + 17^{13} is

(A) 0 (B) 9 (C) 1

**Question 2 :**

If the diameter of a circle is 376216 inches, using the approximation π = 3:14, compute the ratio of the its area, in square inches, to its circumference in inch.

(A) 94054:5 (B) 94554:1 (C) 94054:1

**Question 3 :**

If 1/7 is written in decimal form, then the 100th digit after the decimal point is

(A) 8 (B) 3 (C) 7

**Question 4 :**

The length of the two parallel sides of a trapezium are 15 cm and 10 cm. If its area is 100 sq. cm. Find the distance between the parallel sides.

(A) 12 cm (B) 16 cm (C) 8 cm

**Question 5 :**

.If a, b, and c are nonzero numbers satisfying 3a = 4b and 5b = 6c, what is c/(a + b) ?

(A) 5/14 (B) 3/10 (C) 2/19

**Question 6 :**

The radii of two spheres are of 2 and 6, then the ratio of the volume of the larger sphere to the volume of the smaller sphere is

(A) 1 : 27 (B) 2 : 15 (C) 5 : 14

**Question 7 :**

If P be the product of the first nine multiples of 19 (i.e. P = 19x38x57……….152x171). What is the unit digit of P?

(A) 5 (B) 9 (C) 0

**Question 8 :**

Find the perimeter of the rectangle whose length is 5cm and breadth is 3 cm.

(A) 10 cm (B) 16 cm (C) 15 cm

**Question 9 :**

What is the value of 1 + 3 + 5 +…………………… + 195 + 197 + 199?

(A) 10500 (B) 10001 (C) 10000

**Question 10 :**

The number of positive divisors of 120 are divisible by 4 are

(A) 7 (B) 3 (C) 8

Answers

(1) 10

(2) 94054 : 1

(3) 8 is the 100th digit

(4) 8 cm

(5) 5/14

(6) 1/27

(7) 5

(8) 15 cm

(9) 10000

(10) 8

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