Question

5. The sum of the four times a number and 13 is 45. Find the number.
6. Subtract 12 from twice a number gives 8. Find the number.
7. Ram has 2 marbles more than 5 times Gopal has. Ram has 32 marbles. How many marbles Gopal has?
8. Mohan is 6 years older than Rohan. The sum of their ages is 20.Find their present ages.
9. Thrice a number when increased by 4 gives 40. Find the number.
10. Akbar thinks of a number. If he takes away 8 from four-fifths of the number the result is 20. Find the number.

Answer 1

Step-by-step explanation:

For all these questions , you have to set equation like

5. 4x+13=45

4x=45-13

4x=32

x=32/4

=8

6. 2x-12=8

2x=8+12

2x=20

x=20/2

=10

7. 5x+2=32

5x=32-2

5x=30

x=30/5

=6

8. (6+x)+x=20

6+2x=20

2x=20-6

2x=14

x=14/2

=7

9. 3x+4=40

3x=40-4

3x=36

x=36/3

=12

10. 4/5x -8=20

4/5x=20+8

4/5x=28

x=28×5/4

=35