Solve the following:
Write an equation and solve:
Find the required number in each case.
1. A number decreased by 5 is 23.
2. Eight more than the number is 17.
3. Five multiplied by the number gives 40.
4.Think of a number, divide it by 4 and add 11. The result is 17.
5. Four times a number increased by 8 equals to 24.
6. Raja is 10 years older to Ravi. If Ravi’s age is ‘x’ years, what is Raja’s age?
7. After 15 years, Hema’s age will become four times that of her present age.
Find her present age.
8. Total number of apples and oranges in a basket is 62. If the number of
apples are 20 more than that of oranges, find the number of oranges.
9. The sum of two numbers is 25. One of the numbers exceeds the other by Find the numbers.
10. The sum of three consecutive integers is 93. What are the integers?
*WHO WILL GIVE ME ALL THE CORRECT ANSWERS WILL BE MARKED AS BRAINLY AND WHO WILL GIVE INCORRECT ANSWERS WILL BE REBODED*
Answers
Answer:
1) 28
2) 9
3) 8
4) 24
5) 4
6) x + 10
7) 5
8) 21
9 ) Frame the question properly
10) 30 + 31 + 32
Step-by-step explanation:
1) Let the number =
x-5=23
x=23+5
x=28
2) Let the number = r
r + 8 = 17
r = 17-8
r = 9
3) Let the number = m
m x 5 = 40
m = 40 ÷5
m = 8
4) Let the number = p
p ÷ 4 + 11 = 17
p ÷ 4 = 17 - 11
p ÷ 4 = 6
p = 6 x 4
p = 24
5) Let the number = q
4q + 8 = 24
4q = 24 - 8
4q = 16
q = 16 ÷ 4
q = 4
6) Ravi's age = x
∴ Raja's age = x + 10
7) Let Hema's age = k
4k = k + 15
4k - k = 15
3k = 15
k= 15 ÷ 3
k = 5
8) Let the number of oranges
number of apples = j + 20
j + j + 20 = 62
2j + 20 = 62
2j = 62 - 20
2j = 42
j = 42 ÷ 2
j = 21
∴ number of oranges = 21
number of apples = 21 + 20
= 41
9) by how many number does the other number exceeds u did not mention it so i am unable to this one.
10) 31 + 30 + 32 = 93