Question

Q-7Solve the problems
(1)After 20 years, Suresh's age will be 3 times of his present age, then find his present
age.

(2)In a bag, number of one rupee coin is three times than two rupees coin. If there are only
Rs 150 in this bag, then find out the number of both the coins.

(3)Perimeter of a rectangle is 24 meters. If length of a rectangle is 2 meters more than its
breadth, then find the breadth of a rectangle.


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Answer 1

Step-by-step explanation:

present age x

after 20 years age become x+20

x+20=3x

2x=20

x=10

2)two rupee coin be x

one rupee coin be3x

3x*1+x*2=150

3x+2x=150

5x=150

x=30

two rupee coin =30

one rupee coin=90

3) breadth be x

length be x+2

2(x+x+2)=24

2x+2=12

x=5

breadth=5m

length=7m