MENU
Question -

Solve the following:
(i) Irfan says that he has 7 marbles more than five times the marbles Parmit has. Irfan has 37 marbles. How many marbles does Parmit have?
(ii) Laxmi’s father is 49 years old. He is 4 years older than three times Laxmi’s age. What is Laxmi’s age?
(iii) People of Sundargram planted trees in a village garden. Some of the trees were fruit trees. The number of non-fruit trees were two more than three times the number of fruit trees. What was the number of fruit trees planted if the number of non-fruit trees planted was 77?



Answer -

(i) Let the number of marbles with Parmit be
Step I: Number of marbles that Irfan has = 5x + 7
Step II: 5x + 7 = 37 Solving the equation, we have 5x + 7 = 37
⇒ 5x = 37 – 7 (Transposing 7 to RHS)
⇒ 5x = 30
⇒ 5x/5=30/5 (Dividing both sides by 5)
⇒ x = 6
Thus, the required number of marbles = 6.
(ii) Let Laxmi’s age be x years.
Step I: Father’s age = 3x + 4
Step II: 3x + 4 = 49
Solving the equation, we get
3x + 4-= 49
⇒ 3x = 49 – 4 (Transposing to RHS)
⇒ 3x = 45
⇒ 3x/3=45/3 (Dividing both sides by 3)
⇒ x = 15
Thus, the age of Laxmi = 15 years
(iii) Let the number of planted fruit tree be x.
Step I: Number of non-fruit trees = 3x + 2
Step II: 3x + 2 = 77
Solving the equation, we have
3x + 2 = 77
⇒ 3x = 77 – 2 (Transposing 2 to RHS)
⇒ 3x = 75
⇒ 3x/3=75/3 (Dividing both sides by 3)
⇒ x = 25
Thus, the required number of fruit tree planted = 25

Comment(S)

Show all Coment

Leave a Comment

Free - Previous Years Question Papers
Any questions? Ask us!
NodeJS Interview Questions Answers
ASP.Net Interview Questions Answers
Interview Questions Answers
×