Question

1 Frame 3 equations for the solution t=1/2?
2 Neena has 2 toffees less than 4 times the number of toffees Reena has. Find the number of toffees Reena has , if neena has 14?
3 Rahim bought two chocolates and gave the shopkeeper a 100 rupee note. The shopkeeper returned rupee 10. Find the price of each chocolate, if cost of both is the same?
Maths ace by Alka tuli and Rajesh hassija Pearson active tech grade 7 simple linear equations exercise 7.3 question number 2,5 and 8.

Answer 1

Q1)$t = \frac{1}{2}$

1. 2t = 1000-999

2. t = (2/4)^2 * 2

3. t = 50/10^2

Q2)

Neena has 2 toffees less than the number if toffees reena has and Reena's toffees be x

But it is given that Neena has 14 toffes .

So, according to the question,

Let Reena's toffees be x

Now,

4x-2=14

4x=14+2=16

x=16/4

x=4

Therefore reena has 4 toffees

Q3)

Rahim buys 2 chocolates

He gives shopkeeper a 100 rupee note

And the shopkeeper returns only 10 rupees to him

ie., the cost of chocolates = 100-10=90

So, cost of each chocolate =90/2=45

Therefore, The price of each chocolate is 45 rupees.

#BAL

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