3. 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?
i 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 the 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?
Answers
Step-by-step explanation:
i ) let take permit marble as = x
Irfan has 7 marble more than 5 times = 5x + 7
total marble Irfan has = 37
hence total marble permit have
5x + 7= 37
5x = 37 - 7
x = 30/5
x = 6
permit have 6 marbles ( Ans )
ii ) let take Laxmi age as = x
the age of Laxmi father = 49 year
he is 4 year older than 3 times Laxmi age
= 3x + 4
hence , Laxmi age:
3x + 4 = 49
3x = 49 - 4
3x = 45
x = 45/3
x = 15
Laxmi is 15 year old ( Ans )
iii ) let take the no of fruit trees as = x
the number of non fruit trees wear two more than three times the fruit trees = 3x + 2
the total no of non fruit trees = 77
the no of fruit trees :
3x + 2 = 77
3x = 77 - 2
x = 75/3
x = 25
hence,the total no of fruit trees are = 25 (Ans)