7. Pakistan scored 270 runs and ſell short of India's score by 10%. How much did India score?
8. On a rainy day, 30% of the students of a class were absent. If 84 students were present what was the strength of the class?
9. Sonia has 540. If she has 10% less money than Uma, how much does Uma have?
10. Haniſ scored 48 runs. If he scored 20% more runs than Roy, how many runs did Roy score?
please answer all the question
Answers
Answer:
Answer of 7 India scrored 300 Pakistan is 270 Answer 8. hey there since 30 ℅ Absent 70℅ Present. so, total no is 7x/100 =84 =840/ 7. = 120. so class of students total no is 120. please mark as branleast if help ful
Answer:
Q7. 300
Q8. 120
Q9. 600
Q10. 40
Step-by-step explanation:
Q7. In this question, we will make an equation:
x - (10/100 × x) = 270
x - 10x/100 = 270
x - x/10 = 270 … (1)
By 1st equation, we can say 90x/100 or 9x/10 = 270
Hence, the equation will be =
90x/100 = 270
90x = 270*100
90x = 27000
x = 27000/90
x = 2700/9
x = 300
Q8.
Students that were present = 84
Percentages of Absent Students = 30%
Hence, we can say that number of present students are = 70%
70x/100 = 84
7x/10 = 84
7x = 84 × 10
7x = 840
x = 840/7
x = 120
Strength of class = 120
Q9.
Uma money = X
10% of x = x/10
X - x/10 = 540
9x/10 = 540
9x = 540 × 10
9x = 5400
x = 5400/9
x = 600
Q10.
Let Roy score be x
We know that 48 is 20% more than x.
Hence:
x × 120/100 = 48
x × 12/10 = 48
x = 48 × 10/12
x = 480/12
x = 40