Question

W each one score?
Solve the following:
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?
Laxmi's father is 49 years old. He is 4 years older than three times Laxmi'sage.
What is Laxmi's age?
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?​

Answer 1

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Step-by-step explanation:

(a)  Let the number of Parmit's marble be n.

Then according to question, we have :

                               5n\ +\ 7\ =\ 37

or                                         5n\ =\ 37\ -\ 7

or                                         5n\ =\ 30

or                                           n\ =\ 6

 

(b) Let the age of Laxmi be x.

Then according to question, we have :

                               3x\ +\ 4\ =\ 49

or                                       3x\ =\ 49\ -\ 4\ =\ 45

or                                       x\ =\ 15

 

(c) Let the number of fruit trees planted be z.

Then according to question, we have :

                                3z\ +\ 2\ =\ 77

or                                         3z\ =\ 77\ -\ 2\ =\ 75

or                                           z\ =\ 25