Question

SOLVE THE FOLLOWING:



1. Find the value of A , if 1A X A = 9A.

2. If 31z5 is a multiple of 3, where z is a digit, then find the value/s of z/

3. Factorise (i) z2- 4z – 12

(ii) y2 – 7y + 12

(iii) q2- 10q +21



4. Represent (i) -9/5 (ii) 7/3 on the number line.

5. Jhansi has 3 times as many 2-rupee coins as he has 5-rupee coins . If he has in all a sum of Rs. 77 , how many coins of each does she have?

6. Find the measure of each interior angle & each exterior angle of a regular polygon with 8 sides ?

7. Construct a quadrilateral JUMP , JU = 3.5 cm, UM = 4cm, MP = 5cm, PJ = 4.5 cm, PU =

6.5 cm.

8. A die is tossed, find the probability of getting

(i) A prime number

(ii) An even number

(iii) An odd number

(iv) Getting a number zero.

9. How many natural numbers lie between the squares of the numbers 56 & 57.

10. Write a pythagorean triplet whose one member is 16.

11. Find the square root of the numbers (i) 390625 (ii) 27225 .

12. Find the cube root of (i) 46656 (ii) 175616

13. Calculate the Amount & compound Interest on Rs. 62,500 for 1 yr 6 months at 8 % per annum compounded half-yearly.

14. Subtract 3pq( p-q) from 2pq( p+q).

15. Simplify (a+b) (2a-3b+c) – (2a- 3b)c.



16. Using identities evaluate (998)2.

17. Using Euler’s formula , find the unknowns

FACES ? 5 20 VERTICES 6 ? 12 EDGES 12 9 ?





18. Find the height of a cylinder whose radius is 7cm, and the TSA is 968 sq cm.

19. The LSA of a hollow cylinder is 4224sq cm. It is cut along its height and formed a rectangular Sheet of width 33 cm. Find the perimeter of the rectangular sheet?

20. Water is pouring into a cuboidal reservoir at the rate of 60 L /minute.If the volume of Reservoir is 108 cubic metres. Find the number of hours it will take to fill the reservoir.

21. Express 3.06 x 10-5 in usual form.

22. A train is moving at a uniform speed of 75km/hr (i) How far it will travel in 20 minutes?

(ii) Find the time required to cover a distance of 350 km.

23. Factorise (i) y2 + 7y + 10 (ii) z2 + 6z -16

24. Solve 15( y- 4) – 2( y-9) + 5( y+ 6) =0

25. The digits of a 2-digit number differ by 3. If the digits are interchanged & the resulting number

Is added to the original number , we get 143. What is the original number?

26. What should be added to twice the rational number -7/3 to get 3/7 ?

27. Draw the appropriate graph for the following data:

YEAR PRODUCTION( IN LAKH TONS)

2001 60

2002 50

2003 70

2004 55 2005 80 2006 85



28. Find the smallest / least number that must be added to 1300 so as to get a perfect square. Also find the square root of the perfect square.

29. Find CI paid when a sum of Rs. 10,000 is invested for 1 yr & 3 months at 8.5% per annum

Compounded annually.

30. A rectangular piece of paper 11cm x 4 cm is folded without overlapping to make a cylinder

Of height 4 cm. Find the volume of the cylinder?​

Answer 1

2. The sum of digits of the number is divisible by 3. 31z5 is divisible by 3.

3+1+z+5 = 9+z.

If we add 3 with it then it will be 12 and 12 is divisible by 3.

3+1+3+5 = 12 is divisible by 3.

Therefore, 3135 is divisible by 3.

this is not possible to give all answers so plz can you tell me exercise and class plz