Q.3 (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?

(i) Let the number of marbles with Parmit be x
So, Number of marbles that Irfan has = 5x + 7
According to question,
5x + 7 = 37
= 5x = 37 -7
= x = 30 / 5 = 6
number of marbles with Parmit =x = 6
(ii) Let Laxmi’s age be x years.
So, Father’s age = 3x + 4
3x+4 = 49
= 3x = 49 -4
= x= 45/ 3 = 15
Thus, the age of Laxmi = 15 years
(iii) Let the number of planted fruit tree be x.
So, Number of non-fruit trees = 3x + 2
3x +2 = 77
= 3x = 77-2
= 3x = 75
= x = 75/3= 25
Thus, the required number of fruit tree planted = 25