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Standard VII

Mathematics

Forming Equation from Solution

i Set up an e...

Question

Question 6(i)
Set up an equation in the following case:
Irfan says that he has 7 marbles more than five times the marbles Parmit has. Irfan has 37 marbles. (Take m to be the number of Parmit’s marbles.)

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Solution

Let m be the number of Parmit’s marbles.
Then 5 times the marbles Parmit have = 5m
Irfan have 7 marbles more than 5m
Hence, the number of marbles with Irfan = 5m+7
Given that: No. of marbles Irfan has = 37
$∴$ 5m + 7 = 37 is the required equation.

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Similar questions

(a) Find $x f o r 4 x + 10 = 20$

(b) Set up an equation in the following case:
Irfan says that he has 7 marbles more than five times the marbles Parmeet has. Irfan has 37 marbles. (Take 'm' to be the number of Parmeet’s marbles.) [2 MARKS]

Q. Irfan says that he has

7

marbles more then five times the marbles Parmit has, Irfan has

37

marbles. How many marbles does Parmit have?

Q. Question 3(i)
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?

Set up an equation in the following cases:

(i) Irfan says that he has $7$ marbles more than five times the marbles Parmit has. Irfan has $37$ marbles. (Take $m$ to be the number of Parmit’s marbles.)

(ii) Laxmi’s father is $49$ years old. He is $4$ years older than three times Laxmi’s age. (Take Laxmi’s age to be $y$ years.)

(iii) The teacher tells the class that the highest marks obtained by a student in her class is twice the lowest marks plus $7$ . The highest score is $87$ . (Take the lowest score to be $l$ .)

(iv) In an isosceles triangle, the vertex angle is twice either base angle. (Let the base angle be $b$ in degrees. Remember that the sum of angles of a triangle is $180$ degrees.)

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 year 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 was 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?

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Forming Equation from Solution

Standard VII Mathematics

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Question 6(i) Set up an equation in the following case: Irfan says that he has 7 marbles more than five times the marbles Parmit has. Irfan has 37 marbles. (Take m to be the number of Parmit’s marbles.)

Let m be the number of Parmit’s marbles. Then 5 times the marbles Parmit have = 5m Irfan have 7 marbles more than 5m Hence, the number of marbles with Irfan = 5m+7 Given that: No. of marbles Irfan has = 37 ∴ 5m + 7 = 37 is the required equation.

Question 6(i)
Set up an equation in the following case:
Irfan says that he has 7 marbles more than five times the marbles Parmit has. Irfan has 37 marbles. (Take m to be the number of Parmit’s marbles.)

Let m be the number of Parmit’s marbles.
Then 5 times the marbles Parmit have = 5m
Irfan have 7 marbles more than 5m
Hence, the number of marbles with Irfan = 5m+7
Given that: No. of marbles Irfan has = 37
$∴$ 5m + 7 = 37 is the required equation.