3. Set up an equation for the following cases:
(a) Siya says she has sold three more than twice the number of tickets sold by Timmy. Together
they have sold 39 tickets.
(b) If 5 is subtracted from a number and the difference is multiplied by 6, the result is 6 more than
two times the number.
(C) Parul is 15 years younger than his brother Rahul. After 5 years, she will be half his brother's age.
me lar (d) The total bill of three pizzas and 5 pieces of garlic bread is 1406. The cost of a pizza is 25
more than twice the cost of a piece of garlic bread.
g. FI
4. Find the value of the unknown variables in all the parts of Question 3.
Answers
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Q3a) Number of tickets sold by timmy=X
Number of tickets sold by Siya = 2X + 3
Total tickets sold = 39
2X+3 + X = 39
3X=36
X=12
b) Number = X
6(X-5)=2X + 6
6X-30=2X+6
4X=36
X=9
c) Rahul's age = X
Parul's age = X - 15
After 5 years-
X+5=(X-15+5) × 2
X+5=2X-20
X=25
d)Price of Garlic bread = X
Price of Pizza= 2X + 25
{3 × (2X + 25) } + (5 × X) = 1406
6X+75 + 5X=1406
11X=1406-75
X=1331/11
X=121
In all the questions, for example in (D) to find the price of pizza just put the value of X in the equation (2X+25) and similarly in all other questions. Mark as brainliest if it was helpful.
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