Question

Q-7

Solve 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.​

Answer 1

Step-by-step explanation:

(1) let the Suresh age be x

A/Q

x+20=3x

20=3x+x

20=4x

x=20/4

x=5

(3) perimeter of rectangle=24m

let the breadth be x

therefore, length =x+2

$perimeter = 2{l + b}$

A/Q

x+x+2=24

2x=24-2

x=22/2

x=11m

therefore, breadth =11m

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Answer 2

Step-by-step explanation:

after 20 years Suresh's age will be 3 times of his perents age , then find his present age